CATALOGUE OF SHIELD REPTILES. 



4. Trionyx cariniferus. The Keeled Boulousse. 

 Tab. XXXII. 



The front edge of dorsal disk tubercular ; tlie hinder part 

 of the disk with a central keel, continued by a central series 

 of close triangular acute tubercles. Olive. Head large; two 

 front sternal bones very elongate, produced ; the anterior 

 vertebral bone rudimental. Sternal callosities ? 



Hab. IMoluccas. 



a. Half-grown (in spirits). Yellow. Head like body ; side 

 and end of disk with scattered acute tubercles. Mo- 

 luccas. From the Leyden Museum. 



Trionyx, n. s., Mus. Leyden. 



? Testudo alba, Bodd. Epist. iii. 21. 



c. In spirits (like a). Amboina ; Ceram. Madame Ida 



PfeifFer's Collection. 



d, e. Young (in spirits). Olive, with small round dark 



spots ; the larger spots in three series, one down the 

 vertebral line, and the others in the middle of the 

 sides. Head dark above and below, s\^nmetricallv 

 white- spotted, the spots of tlie occiput and those of 

 the chin larger, and with a very large irregular white 

 spot at the side of the neck ; back of neck and feet 

 white-spotted. Amboina or Ceram. Madame Ida 

 Pfeiflfer's Collection. 



/,(/. Young (in spirits) ; like d and e. Mr. Bartlett's Col- 

 lection. 



Osteology : — 



i. Half-grown skeleton ; anterior vertebral bone not deve- 

 loped. Java. From the Leyden Museum. 

 Trionyx stellatus, 3Iiis. Leyden. 



The specimens of this species are larger than the stuffed 

 example of T. Javaniriis, but yet they have no appearance 

 of any sternal callosities. 



5. Ti-ionyx frenatus. The Bridled Boulousse. 

 Olive-brown (in spirits). Back with numerous close 

 lines of small tubercles, two central parallel, the others 

 rather irregular. Head brown, with a dark streak on the 

 forehead, divided behind the eyes into three broad indistinct 

 diverging streaks, and one from the hps at the base of the 

 proboscis through the eyes to the sides of the throat ; lips 

 brown, pale-spotted ; throat pale brown, sides of the neck 

 whitish. Sternal callosities 4, small. 



a. Young (in spirits). From the Museum of the Zoological 



Society. 



" Gymnopus Javanicus," Bibron, 3ISS., Miis. Zool. Soc. 



b. Half-grown female (stuffed). It contained many full- 



sized eggs ; the sternal callosities are only very 

 slightly developed. Singapore. Mr. M'allace's Col- 

 lection. 



This species is very like Bagonia subjjiana, but the head 

 is smaller and brown-lined, and there are indications of 

 four sternal tubercles. The ribs are narrower, and the 

 ends of the ribs are nearer the front side of the dilated 

 part, and not in the centre, as in our specimen of D. sub- 

 plana. The rudiments of the sternal callosities are on each 

 of the two lateral sternal bones, while in Bagonia thev are 

 only found on the anterior pair. 



The young specimen was named Trionyx Javanicus by 

 M. Bibron, but the head was then entirely contracted into 

 the shell, so that only the tip of the nose could be seen. It 

 differs from that species in the position of the dark streaks, 

 and in their being much less distinctly marked. 



6. Trionyx Javanicus. The Boulousse. 



The front and hinder edge of the dorsal disk tubercular. 

 Olive-green ; crown of the head with one central and two 

 radiating black lines ; two front sternal bones elongate, pro- 

 duced. 



Testudo Javanica, Osbeck, China, 149? 

 Tyrse Javanica, Gray, Cat. Tort. B.M. 47. 

 Trionyx Javanicus, Geoff. Ann. Mus. xiv. 1.5. t. 3. 

 Sckweig. Prod. 287. 



Gray, Syn. liejif. 48 ; Il/iist. Ind. Zool. t. . f. 1, 2. 

 Gymnopus Javanicus, Bum. ^- Bib. Erp. Gni. ii. 493 ; Cat. 



Mith. R. 22. 

 Potamochelys Javanicus, Fitz. Syst. Rept. 30. 

 Aspidonectes Javanicus, Fitz. 



TJ'ag/er, Syst. t. 2. f. l-Il. 

 Cantor, Rept. Malac. 8. 

 Testudo Gataghol, B. Hamilton, Icon. ined. no. 15? cop. 



Gray. 

 T. rostrata, Thunb. X. Act. Suec. riii. 179. t. 7. f. 2, 3. 

 Schoepff: Test. 93. t. 20. 

 Baud. Rept. ii. 77, young. 

 T. cartilaginea, Bodd. Bert. Naturf. ii. 2C3. 

 T. Boddaertii, Schneid. Schildk. t. I. f. 1, 2. 

 T. membranacea, Blumenb. Beyt. t. 2. 

 Trionyx stellatus, Geoff. Ann. Mus. xiv. 13, young. 

 Boulousse, Javanese. 



Hab. Java. 



a. Half-grown? (in spirits) ; 5^ inches. India. 



b, c. Young (in spirits) ; not eyed. India. 



(/. Half-grown (stuffed). Back with irregular rugose ridges ; 

 anterior bone separate ; lateral sternal callosities con- 

 tracted in the middle ; hinder oblong, oblique. India ; 

 Deccan. Presented by Colonel Sykes, F.R.S. 



e,f. ? Very young (in spirits); uot good state. China. 

 Presented by'W. Baird, M.D. 



g, //, i. Very young (in spirits). Back eyed. India. 



j. Very j-oung (dry skin) . India. 



k. Half-grown (stuffed). First vertebral bone slightly de- 

 veloped India. Capt. Boys' Collection. 



L 2 



