Proceedings of the Biological Society of Washington, 17. köideBiological Society of Washington, 1905 |
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Page 54
... teeth than in Peromyscus proper or in Megadontomys . In the ordinary type of Peromyscus there is a small accessory tubercle between the primary outer tubercles of the first and second upper molars . In unworn teeth these tiny tubercles ...
... teeth than in Peromyscus proper or in Megadontomys . In the ordinary type of Peromyscus there is a small accessory tubercle between the primary outer tubercles of the first and second upper molars . In unworn teeth these tiny tubercles ...
Page 58
... teeth small . Color . - Type , in fresh pelage : General color of upper parts between Prout's brown and burnt umber , clearer on sides , darker on back ; ground color rich dark fawn ; no definite lateral line ; under parts pure white ...
... teeth small . Color . - Type , in fresh pelage : General color of upper parts between Prout's brown and burnt umber , clearer on sides , darker on back ; ground color rich dark fawn ; no definite lateral line ; under parts pure white ...
Page 59
... teeth . No specimens from the humid tropical region between Orizaba and Yohaltun are at hand , but castaneus is not sufficiently different from mesomelas to warrant full specific rank . P. affinis is a related form of the adjacent arid ...
... teeth . No specimens from the humid tropical region between Orizaba and Yohaltun are at hand , but castaneus is not sufficiently different from mesomelas to warrant full specific rank . P. affinis is a related form of the adjacent arid ...
Page 60
... teeth ; lachrymal region less swollen ; nasals rather long and broad ; zygomata somewhat compressed anteriorly , not elbowed squarely ; premaxill¿ usually ending beyond nasals ; interpari- etal rather large ; audital bull¿ quite small ...
... teeth ; lachrymal region less swollen ; nasals rather long and broad ; zygomata somewhat compressed anteriorly , not elbowed squarely ; premaxill¿ usually ending beyond nasals ; interpari- etal rather large ; audital bull¿ quite small ...
Page 61
... teeth and relatively small audital bull¿ . Color . - General color of upper parts grayish broccoli brown , produced by a ground color of pinkish buff mixed with dusky ; lateral line clear pinkish buff ; head slightly more grayish than ...
... teeth and relatively small audital bull¿ . Color . - General color of upper parts grayish broccoli brown , produced by a ground color of pinkish buff mixed with dusky ; lateral line clear pinkish buff ; head slightly more grayish than ...
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Common terms and phrases
Adult female Adult male Average banderanus basal basilar length BIOLOGICAL SOCIETY Biological Survey Collection birds blackish bony palate border braincase brownish buffy characters Characters.-Size Chiapas cinerascens cinnamon color culmen dark darker dingy dorsal dull dusky E. A. Goldman E. W. Nelson ears edged fulvous genus gray grayish greenish grizzled Guatemala hair brown head hind foot inner webs inquietus Isthmus of Tehuantepec larger lawrencei length of Hensel Lepus Measurements.-Type melanophrys mexicanus Mexico Michoacan Myiarchus nape patch narrow nasals Nelson and E. A. nuttingi Oaxaca olive outer tail feather Outram Bangs palatine slits pale paler pectoral pelage Pelexia Peromyscus posteriorly Puebla rostrum rump Sauroglossum sepals sides similar slender slightly smaller SOCIETY OF WASHINGTON species specimens Subg subsp subspecies tail vertebr¿ tarsus tertials Tetraneuris Total length type locality U. S. National Museum upper molar series upper tail coverts upperparts whitish whorls wing coverts yellowish zygomatic width
Popular passages
Page 6 - ... eighteen of which occur upon the second, twenty on the third and eighteen upon the penultimate whorl. The ribs are best developed near the summits of the whorls and scarcely extend to the periphery. Spiral lirations low, rounded, subequal, about twelve occur between the sutures upon the third and the penultimate whorls. These spiral lirations like the axial ribs appear strongest near the summits of the whorls. Periphery and base of the last whorl well rounded, the latter ornamented by about eleven...
Page 49 - OSGOOD, Proc. Biol. Soc. Washington, vol. 17, p. 75. March 21, 1904. TYPE LOCALITY.— Hacienda la Parada, San Luis Potosi, Mexico. RANGE. — Middle part of the Mexican table-land in the States of San Luis Potosi, Zacatecas, and Nuevo Leon.
Page 38 - XVII, pp. 53, 54, fig. 1, March 21, 1904. Type. — Peromyscus eremicus (Baird), from Fort Yuma, California. Characters. — Size medium or small; pelage usually very soft and silky; tail longer than head and body, subterete, rather thinly haired; soles of hind feet naked (at least in median line) to calcaneum, 6-tuberculate and paved with minute imbricate scales; skull with cranium rather large and rostral region relatively weak; first and second upper molars with three salient and two reentrant...
Page 6 - Wash., vol. 17, 1904, p. 16. Shell elongate-conic, subdiaphanous to milk-white. Nuclear whorls quite large, at least two about three-fourths obliquely immersed. Post-nuclear whorls rather broad between the sutures, well rounded, faintly shouldered at the summit, ornamented with depressed, rounded, rather broad axial ribs, about 18 of which occur upon the second, 20 on the third, and 18 upon the penultimate whorl.
Page v - Gastropods with the radula absent or obsolete ; the operculum ovoid paucispiral, with the apex anterior, a thread-like arcuate ridge on the proximal side, the inner margin notched in harmony with the plaits of the pillar when prominent; foot short, moderately pointed behind, with a small operculigerous lobe above and sometimes a small tentacular appendix on each side, in front feebly auriculate or undulate; mantle feebly canaliferous on the right upper margin; a single branchia; verge subcylindric,...
Page 127 - The same principle which is involved in § 6 will apply to § 8. § 8. If the later name be so defined as to be equal in extent to two or more previously published genera, it must be cancelled in toto.
Page 47 - ... underparts deep blackish slate washed with creamy white, producing an effect which varies from olive gray to slate gray; pectoral region usually rich cinnamon rufous; an intense black line extending from nostrils through base of whiskers and eye; tail covered with short, bristly, blackish hairs scarcely paler below than above; scaly annulations of tail usually dusky all around, sometimes with slight irregular patches of paler; fore and hind feet dusky brownish to base of toes. Skull.
Page v - ... in the larger forms, the funicles with a ciliated area; eyes behind or between the bases of the tentacles; below the tentacles an oral orifice from which extends a long retractile subcylindric proboscis, but there is no muzzle like that of Scala; below the oral orifice is an organ named by Loven the mentum, which is usually more or less medially grooved or fissured, and hence, at its anterior end, more or less bilobate, and extensile or retractile before or behind the front margin of the foot....
Page 45 - General effect of npperparts uniform clay color produced by a ground color of ochraceous buff and a fine peppery mixture of dusky: lateral line rather broad, ochraceous buff; forehead and orbital region from posterior base of whiskers to ear grayish; anterior base of whiskers...
Page 4 - Periphery and base of the last whorl well rounded, the latter with a minute umbilical chink. Aperture auricular, somewhat effuse anteriorly, posterior angle scarcely acute; outer lip very thick, reflexed, pillar with a broad, strong, oblique fold, a little anterior to its insertion; parietal wall covered by a thick callus. The type has six post-nuclear whorls, and measures: Length 9.9 mm., diameter 5 mm. It was collected by Krause at Killisnoo, which is in Alaska, and not in Japan, as stated by Clessin....