L. G. ANDERSSON, REPTILES AND BATRACHIANS ETC. 11 



(as large as peas), is the different shape of the head; at least 

 in these specimens the male has a shorter nose and broader in- 

 terorbital space than the female, the last mentioned measure- 

 ment being in percentage of the distance between the hind mar- 

 gin of the orbit and the tip of the nose in the male 11 %, in the 

 female only 62 °o. The length of the male is 39 + 26 mm, that 

 of the female 43 + 31 mm. 



Crocodiles. 



Crocodilus iiiloticus Laur. 



BouLGR., Cat. Chel Croc. p. 283. 



A small specimen from S:te Marie de Marovoay, about 1 m. 

 in length. 



Marovoay signifies many crocodiles (maro = many, voay 

 = crocodile). »There are good reasons for the name», says 

 Dr. Kaudern, »the branch of the river on which the little town 

 is situated, swarming with crocodiles. » When he went there, 

 he saw 50 crocodiles in half an hour. 



Chelonians. 



Sternothsprus nigricans Donnd. 



BouLGR., Cat. Chelon. p. 195. Siebenrock, Zur Syste- 

 matik d. Gattung Steniothcerus in Zool. Anz. 26, p. 191. 



Several specimens from S:te Marie, where the species was 

 common in pools and stagnant water. 



In agreement with Tornier (Zool. Jahrb. Sy st. 13, p. 585), 

 I am able to state that the nose is distinctly notched and also 

 keeled, the faint keels ending in a small cusp on each side of the 

 notch. In these characters the specimens agree very well with 

 some examples of St. sinuatus Smith, kept in the Royal Museum 

 of Natural History at Stockholm, but the plastral shields are 

 quite in conformity with Siebenrock's description of St. nigri- 

 cans and distinctly distinct from that of St. sinuatus. In 

 one of the specimens the three middle vertebrals are broken 

 up into five smaller shields, forming two rows with the shields 

 wedged in between each other. 



Length of shell 180 mm. 



