| 单词 | ventrally |
| 例句 | In contrast, other animal phyla are characterized by solid nerve cords that are located either ventrally or laterally. Fundamentals of Biology 2015-01-01T00:00:00Z In contrast, other animal phyla possess solid nerve cords that are located either ventrally or laterally. Concepts of Biology 2013-04-25T00:00:00Z One interesting difference between the nervous systems of invertebrates and vertebrates is that the nerve cords of many invertebrates are located ventrally whereas the vertebrate spinal cords are located dorsally. Biology for AP Courses 2022-06-09T00:00:00Z The pelt is greyish-white ventrally and reddish dorsally. The amazing swimming Proboscis monkey (part I) 2012-11-30T12:45:00.210Z Nutlets erect and straight, unarmed, attached to the axis either at inner edge of base or ventrally from the base upward.—Ours are very hispid annuals or biennials, with small white flowers in scorpioid spikes. The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee 2012-04-12T02:00:30.140Z Skull: Zygomatic arches shorter; tympanic bullae less inflated ventrally; zygomatic breadth less; mastoid breadth greater; width across alveolar processes of maxillae greater; alveolar length of upper molar series greater; molariform teeth larger. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z At the anterior end and situated somewhat ventrally is the circular widely gaping mouth or buccal cavity, its lining studded with sharply pointed thorn-like “teeth” and its edge fringed with numerous sensory papillae. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z The black rings on the body are not bordered by yellow, but black rings on the tail have yellow borders ventrally. Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala 2011-12-25T03:00:10.957Z N San Francisco, in northern Chihuahua, appear to be intermediate in color between ater and paulus except for a faint tinge of buff ventrally. Speciation and Evolution of the Pygmy Mice, Genus Baiomys 2011-12-15T03:00:11.933Z In dorsal view, ossification proceeds anteriorly between the nasals and posteriorly, ventral to the frontoparietals; ventrally, ossification proceeds posteriorly dorsal to the parasphenoid. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Skull: Small and not heavily ridged; zygomatic arches widely spreading but weak; zygomatic arches nearly parallel; tympanic bullae moderately inflated ventrally; palate not arched; interpterygoid space U-shaped; dentition light. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z The hoops of each side are connected together dorsally by a pair of longitudinal bars, lying ventral to the notochord, and ventrally by a similar pair of rods which are fused in the middle line. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z The articulating surface upon which the median process of the maxillary bone rests is situated ventrally. A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) 2011-09-25T02:00:14.967Z Figures of early stages in vertebral development by the authors mentioned show that the basidorsals chondrify first, as neural arches, while a separate mass of mesenchyme lies externally and ventrally from these. The Ancestry of Modern Amphibia: A Review of the Evidence 2011-09-10T02:00:27.077Z The iris varies from golden bronze to dull bronze with black reticulations, somewhat darker ventrally. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Skull: Long and narrow; nasals long, rounded proximally and usually simple distally; rostrum long; interparietal triangular; tympanic bullae large, and well inflated ventrally; basioccipital narrow; palate narrow; palatal pits shallow; dentition light. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z My findings indicate that T. b. cultellus is not smaller, that its skull is not smaller and not less angular, and that the tympanic bullae are not less pointed ventrally. Geographic Variation in the Pocket Gopher, Thomys bottae, in Colorado 2011-09-06T02:00:10.127Z Farther ventrally the frontal joins with the parasphenoid, which at this place forms the ventral extent of the skull, and together with the basisphenoid forms the ventral part of the posterior three-fourths of the skull. A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) 2011-09-25T02:00:14.967Z The body, otherwise circular in section, is slightly flattened ventrally. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Initially it is extremely shallow; dorsally it is widely separated from the nasals, and ventrally the posterior margin meets the anterior point of the parasphenoid. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Skull: Smaller, more convex; rostrum shorter, wider and more depressed; zygomatic arches shorter and heavier; mastoidal breadth actually, as well as relatively wider; tympanic bullae more inflated ventrally; upper incisors shorter and wider. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z In the pelvic region, from about the level of the posterior end of the ischiadic plexus, the strand of each side becomes single again, passing ventrally over the transverse processes. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z The basioccipital does not have noticeable pterygoid processes, but is rather smooth ventrally and only slightly emarginate on its posterolateral margins. A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) 2011-09-25T02:00:14.967Z Model of a simple pistil, with ovary cut across and slightly opened ventrally, to show the ovules and their attachment. The Elements of Botany For Beginners and For Schools The mouths are moderately large and directed ventrally. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Skull: Larger; mastoid breadth less; zygomatic arches wider and more widely spreading posteriorly; median frontal depression more marked; extension of premaxillae posterior to nasals greater; tympanic bullae less inflated ventrally; molariform teeth larger. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z In most birds the feet of the coracoids do not touch each other; in some groups they meet, in others one overlaps the other, the right lying ventrally upon the left. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z The dorsal ground color is pale brown, tan, olive, or white; usually the ground color is palest ventrally and darkest dorsally. A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) 2011-09-25T02:00:14.967Z More ventrally another slight diverticulum probably represents the infundibulum. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" In life the body is dark brown with greenish gold flecks ventrally; the caudal musculature is gray. Neotropical Hylid Frogs, Genus Smilisca 2011-10-24T02:00:14.853Z Color: Slightly darker dorsally, but markedly darker ventrally; postauricular patches smaller and lighter. The Pocket Gophers (Genus Thomomys) of Utah, Vol. 1 No. 1 Kansas University Publications. 2012-03-19T02:00:23.340Z The right and left halves are connected ventrally to the oesophagus by a short vessel which supplies these tentacles in the immediate neighbourhood of the mouth. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" The process is broad and almost flat, except that at its medial end, an elongate, rounded knob extends ventrally. A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America) 2011-09-25T02:00:14.967Z The body is black dorsally and laterally, and bluish gray ventrally; the tail musculature is brown and stippled with darker brown. The Amphibians and Reptiles of Michoacán, México Males have larger but not more numerous, femoral pores, blue bellies, and pink and blue throats, whereas females are unicolor creamy white ventrally. A New Subspecies of Lizard, Cnemidophorus sacki, from Michoacan, Mexico The direction of the coil of the shell cannot be determined by the position of the siphuncle, which traverses the septa centrally, ventrally or dorsally. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Like the chief arm-nerve, this strand runs through the lophophore, parallel indeed with the former except near the middle line, where it passes ventrally to the oesophagus. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" Specimens from Java were paler gray ventrally and their tertials were more nearly white. Birds from North Borneo University of Kansas Publications, Museum of Natural History, Volume 17, No. 8, pp. 377-433, October 27, 1966 The body is round and tapering, the snout projects, and the mouth is placed ventrally some distance from the end of the snout. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" In the two largest paratypes nearly all the white rings are incomplete ventrally, appearing to have been encroached upon by the darker ground color. A New Snake of the Genus Geophis From Chihuahua, Mexico The principal vein is a vena 698 cava passing backwards ventrally from the cephalic region and dividing into two afferent branchial veins, each of which receives a pallial and an abdominal vein. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Nevertheless, they are distinctly brighter dorsally, paler ventrally, and average larger than the specimens listed in the account of R. m. howelli above. Records of Harvest Mice, Reithrodontomys, from Central America, with Description of a New Subspecies from Nicaragua Dorsally the origin is bounded by the base of the postorbital process and ventrally by the temporal process. Jaw Musculature of the Mourning and White-winged Doves The distance from the posterior end of the quadrate to the visible posterior edge of the orbital fenestra, which opens ventrally, is 10.0 mm. A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas Both sets of bands are in the form of complete rings or the dark bands are joined ventrally rendering the belly dark. A New Snake of the Genus Geophis From Chihuahua, Mexico The statocysts are situated ventrally between the pedal and visceral ganglia, and are entirely enclosed in the cranial cartilage. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The head bears four setae, and some of the ridges bear a pair either dorsally or ventrally. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" The narial rim is wide, but wider ventrally than dorsally. Two New Pelycosaurs from the Lower Permian of Oklahoma The two pleurocentra of each vertebra are separate ventrally as well as dorsally, but form thin, broad plates of about the same height as the notochord. A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas The mandibular ramus is ventrally convex in both genera. The Adductor Muscles of the Jaw In Some Primitive Reptiles Shell straight, ampulliform, summit truncate, terminal chamber extending nearly whole length of shell ventrally. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The present specimen is darker ventrally than specimens of either D. s. cactophilus or D. s. symplectus, and on its upper surface the black bars are wider than the white. Birds from Coahuila, Mexico The grain is oblong, brownish, dorsally concave and ventrally raised and convex. A Handbook of Some South Indian Grasses Metepimeron: in Odonata, lies behind the second lateral suture and extends ventrally to the sternum. Explanation of Terms Used in Entomology As is shown in figure 3D, the neurenteric canal, nc, still opens ventrally, though the medullary canal, mc, has now no dorsal opening to the exterior. Development of the Digestive Canal of the American Alligator In all centipedes, except the Scutigeridae, the preantennal portion of the cephalite is sharply reflexed, ventrally forming an area called the clypeus. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The thorax is bounded dorsally by the vertebral column, and ventrally by the sternum. Text Book of Biology, Part 1: Vertebrata The esophagus, just behind the heart, turns ventrally and to the left. Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery Just anterior to these openings the cloaca opens ventrally into a small, anteriorly-projecting pouch, the rudiment of the allantois. Development of the Digestive Canal of the American Alligator |
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