32 



CATALOGUE OF SHIELD REPTILES. 



I, c. Young (in spirits). Upper part of the marginal plates 

 with short black vermicnlated lines ; the lower side 

 yellow, with fewer tortuous similar lines on both sides 

 of the body. 



d. Adult (in spirits). The lower part of the marginal plate 

 pale. Neck with line of small black dots. Bad state. 

 From the Zoological Society. 



Osteology. Cuv. Oss. Foss. v. 204. t. 12. f. 44, young 

 sternum. 



In our adult and three young specimens there is a spot 

 on each side of the nose, a streak commencing from the 

 middle of the orbit, diverging to the sides of the nape, a 

 spot on each side of the middle of that part, and a narrow 

 streak on the temple from the upper and lower part of the 

 back edge of the oibit, and the neck is marked with several 

 narrow black lines on the sides. 



Mr. Bell's figure of the adult {Testudinata, t. 1) differs 

 from these ui representing the superciliary bands as being 

 united by a short transverse band in front. 



32. Emys D'Orbignii. D'Orbigny's Emys. 

 Shell ovate, swollen, nearly smooth, keelless, slightly 

 toothed behind, chestnut-brown, with a black dorsal streak 

 and large triangular black spots on the edge of the disk ; 

 first vertebral shield pear-shaped ; marginal plates brown, 

 with a large central yellow marginal spot. Sternum black, 

 irregularly edged with yellow. Head and neck yellow- 

 lined, with a broader streak from the back edge of the eyes 

 along the sides of the neck ; legs with broad yellow streaks ; 

 toes webbed ; claws acute ; crown with numerous yellow 

 streaks ; upper jaw nicked. 



Emvs D'Orbignii, Dum. ^ Bib. Erp. Gen. ii. 272 ; Cat. 

 ileth. iJ. 11. 



ly Orbiyny, Voy. Amer. Wirid. Rept. v. 6. t. I. 

 Gray, Cat. Tort. B.M. 22. 



Hab. South America ; Buenos Ayres. Mus. Paris. 



33. Emys dorsalis. The New Granada Emys. 

 Tab. XIV. a. 



Shell oblong, convex, rather elongate, keelless, slightly 

 toothed behind, dark brown ; shield smooth, slightly 

 grooved, and rather paler on the edge ; first vertebral four- 

 sided, the second, third and fourth six-sided, about as long 

 as broad. Sternum blackish, with a broad pale band on 

 each side, and on the edge of the anterior and posterior 

 shields ; crown and cheeks black, with a broad pale streak 

 from the nostril over the orbit and on the sides of the occi- 

 put, a broad sinuous streak from the upper part of the back 

 edge of the orbit and another more sinuous beneath it. 



Lips and throat yellow. Legs and feet yellow, black spot- 

 ted and streaked. 



Emys dorsaUs, Spix, Bras. t. 9. f. 1, 2. 



Hab. New Granada; River Buonaventura. J. O. Good- 

 ridge, Esq. 



a. Adult (in spirits). New Granada. Presented by the 

 Admiralty from Haslar Hospital. 



Emys dorsalis (Spix, Test. Bras. 1 1 . t. 9. f. 1, 2) probably 

 represents the young of this species, as the marks on the 

 head agree with those on our specimen. This figure has 

 been referred to E. scabra, but the form of the head bands, 

 if they are correctly figured, at once separates it from that 

 species. 



6. CHRYSEMTS. 

 Head covered with a thin hard skin, oblong ; forehead 

 rather convex. Eyes subsuperior. Beak naked ; upper 

 with two small teeth in front ; lower beak extended behind, 

 covering the rounded lower edge of the lower jaw. Fore 

 legs covered with large transverse shields. Toes short, 

 strong, shortly webbed, covered with hand-like scales above. 

 Claws 5-4, compressed, arched, the three middle front 

 often much elongated, subequal. Tail moderate. Shell 

 depressed. Sternum solid, broad, truncated before and be- 

 hind, affixed to the thorax by a bony symphysis covered 

 at the end by the pectoral and abdominal shields ; axillary 

 and inguinal plates moderate, distinct. Shield very thin, 

 smooth ; the marginal plates with a subcentral marginal 

 areola, surrounded with dark-edged concentric rings ; the 

 humeral plate triangular ; the pectoral narrow, square. 



Chrysemys, Gray, Cat. Tort. B.M. 2/ (1844). 

 Emys (type). Bell, Zool. Journ. iii. 515. 



1. Chi-ysemys picta. The Painted Tortoise. 



Shell oblong, depressed, keelless, very smooth ; shields 

 thin, olive-brown; discal shield with a broad yellow or red 

 front margin ; vertebral shield with a narrow central Une ; 

 sternum yellow. Head and throat black, yellow-lined ; 

 tail long, slender. 



Emys picta, Sc/iweiy. Prod. 306. 



Merrem, Tent. 23. 



Gray, Si/n. 2(i ; Cat. Tort. B.M. 27. 



Dum. ^'Bib. Erp. Gen. ii. 297 ; Cat. Mi-th. R. 12. 



Holbrooh; N. A. Herpet. ii. 19. t. 3 ; ed. 2. i. 75. t. 10. 



Be Kay, 12. t. 5. f. 10. 

 Testudo picta, Herm., Schneid. Schildk. 348. 



Sehoepf. Test. t. 4. 



Leconte, Ann. Lye. N. V. iii. 115. 



