1168 



PROF. J. P. HILL AND MR. R. H. BURNE ON THE 



The external genitalia are remarkable for the length and 

 thickness of the penis, the distal end of which is curved forwards, 

 with its posterior, or inferior, siirface strongly convex. Proxi- 

 mally it arises in front between the two well-marked inguinal 

 mammte, and its integument here is mesially grooved. Imme- 

 diately behind its posterior point of insertion there is a little 

 bilobed thickening of the skin, representing the tip of the 



Text-figure 6. 



A. Lateral view of the hind quarters to show the prominence of the penis. 

 B. Ventral view of the hind quarters, with penis turned aside to the left. 

 m. mamma ; p. penis ; s. scrotum ; m. umbilical cord. 



undeveloped scrotum, and above this on each side a shallow 

 groove runs upwards and forwards to the level of the mammse, 

 apparently defining the inguinal position of the testes. The 

 penis, the inner surfaces of the thighs, and the abdominal region 

 are much more scantily hairy than the upper and outer surfaces 

 of the body and limbs. 



List of References. 



1. Milne Edwards, A. — "Observations sur quelques points de 



I'Bmbryologie des Lemuriens." C. R. xlcad. Sci., t. 73. 

 14 Aout, ]871, p. 422. 



2. Milne Edwards, A. — Ihid. Ann. Sci. Nat. ser. 5, t. xv. 



1872. [Propithemis, Lepilemttr, Hapalem'iir, Chirogaleiis.) 



3. Milne Edwards, A. — " Du Placenta et des Enveloppes 



ftetales '' (des Lemuriens). Chap. ix. : " Histoire Natu- 

 relle des Mammiferes de Madagascar."' T. i. & Atlas, in 

 Grandidier's ' Histoire de Madagascar,' vol. vi. Paris, 

 1875. [Propithecus diadema, P. edivardsii, P. ver- 

 reauxii, Avahis laniger, Ivdris hrevicaudatiis.) 



4. Milne Edwards, A. — " Sur la disposition des enveloppes 



foetales de I'Aye-Aye." C. R. Acad. Sci. Paris, t. 99. 

 1884, p. 265. {Chiromys.) 



5. Turner, W. — " On the Placentation of the Lemurs." Phil, 



Trans., vol. 166. 1877, p. 569. {Propithecus diadema, 

 Lemur rufpes, Indris hrevicaudatus.) 



