Identifier: transactionsproc4445phil (find matches)
Title: Transactions and proceedings and report of the Philosophical Society of Adelaide, South Australia
Year: 1878 (1870s)
Authors: Philosophical Society of Adelaide, South Australia
Subjects: Philosophical Society of Adelaide, South Australia Science
Publisher: Adelaide : The Society
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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eek and to the lower jaw near to itsangle. Upon the body and limbs (see fig. 2) the hair dispositionis, on the whole, extremely simple. There is a uniform bodyflow directed ventrally and caudally, and a uniform limbdistribution having a ventral and post-axial trend. Thereare no hair reversals upon the limbs, and no whorls orpartings upon the body. Hair is continued to the extremity of the ungual phalanxof both fingers and toes; the heels are hairy. The hair when first uniformly distributed over the body isalmost black in colour; but when the young leaves the pouch thedorsal surface is black-brown and the ventral parts bright-tan. The Chest Gland.—At no stage have I been able torecognize in any of the young specimens that T have examinedany naked-eye trace of the chest gland said to characterizethe adult. 364 Sensory Vibriscae.—In ontogenetic sequence the first ofthese vibriscae to appear is the ulnar carpal tuft, which is*present as an elevated cutaneous papilla before any visible
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hair springs from it. This papilla is conspicuous at theY2 mm. stage. AH the remaining papillae and their accom-panying vibriscae are well developed at the 65 mm. stage. 365 Facial Vibriscae.—Of the buccal set, the naso-labial ormystacial vibriscae are arranged in 5 rows (see fig. 3, A),The superior row contains 2, the next 4, the next 6, thenext 7, and the lowest, or labial, 4, papillae, from each ofwhich a long, backwardly-directed bristle springs. The mental or sub-mental set (E) con-sists of a series offar smaller papil-*S ^ v<—^\ lae, which give I ^^^kS^. ^^x r*s€ ^° s^ender, ^--^<fejx —^^O^S^s^ x anc* comparatively short, vibriscae.The interramal (B) is a largepapilla from which3 or 4 elongatedand stout vibriscaetake origin. Thegenal or zygomatic (C) is the largest,and consists of anovoid and defin-itely tuberculated mass giving origin to five stout vibriscae. The superciliaryor supraorbital (D) gives rise to only two vibriscae, andthough small is a very prominent

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