1. STEKXOTlIJCRtrs. — 2. rEr.OMKDUSA. 1!)7 



6. Sternothaerus gabonensis. 



Pentonyx pabonensis, ^. Dum. Arch. Mies. x. p. 1G4, pi. xiii. fig. 2 

 (1800) ; Gra;/, Ann. c^- Mac/. N. H. (3) xiii. p. 108 (1804). 



Pelomedusa giiboneutiis, Strauc/i, Chelon. Stud. p. 45 (1802), and 

 Verth. Schildkr. p. 107 (IBOo). 



Sternothaerus gabonensis, Bocaye, Jorn. Sc. Li'.'ih. i. p. 57 (1800). 



This species is founded upon a (juite young specimen which, 

 judging from the figure, agrees with aS'. derbianus in the comparative 

 size of the humeral and pectoral shields, with >S. adansonii in the 

 shortness of the abdominal shields. Carapace and plastron blackish 

 brown. 



Gaboon, Angola, 



2. PELOMEDUSA. 



Pelomedusa, Wagl. Syst. Amph. p. 130 (1830); Grai/, Cat. Tort. 



p. 37 (1844), and Sh. Jiept. i. p. 52 (1855) ; Strauch, Chelon. Stud. 



p. 44 (1802) ; Gray, Suppl Cat. Sh. Rept. i. p. 81 (1870). 

 liydraspis, part., Gray, Syn. Rcpt. p. 39 (1831). 

 Pentonyx, Dum. 8,- Bibr. ii. p. 389 (1835). 



Mesoplastral bones small, lateral, wedged in between the hyo- 

 and the h}-poplastra ; plastron narrow, without hinge. Skull 

 without supratemporal roof, the quadrato-jugal widely separated 

 from the parietal ; alveolar surface of the upper jaw with a very 

 indistinct median ridge ; a pair of shields, separated by a longi- 

 tudinal suture, between the eyes, followed by a large interparietal. 

 Digits verj' short, mostly with only two phalanges ; five claws to 

 each foot. 



Africa and Madagascar. 



"O'- 



1. Pelomedusa galeata. 



Testudo galeata, Schoepf, Test. p. 12, pi. iii. fig. 1 (1702) ; Haua. 



Rept. ii. p. 130 (1802). 



badia, Donnd. Zool. Beitr. iii. p. .34 (1798). 



subrufa, Daud. I. c. p. 132. 



Emys olivacea, Schweigg. Prodr. p. 38 (1814). 



galeata, Schweigg. 1. c. 



subrufa, Schweigg. I. c. p. 39. 



Pelomedusa galeata, ll'agl. Syst. Amph. pi. ii. figs, xxxvi.-xliii. 



(1830) ; Strauch, Chelon. Stud. p. 150 (1802), and Verth. Schildkr. 



p. Ill (1805); Buideng. Bull. Soc. Zool. France, 1880, p. 140; 



Boettg. Abh. Sench. Ges. xii. p. 410 (1881); Peters, Reise n. 



Moss'amb. iii. p. 6 (1882) ; Bocage, Jorn. Sc. Lisb.x. p. 202 (1887) ; 



Boettg. Ber. Sench. Ges. 1888, p. 13, 

 Hydraspis subrufa, Gray, Syn. Rept. p. .39 (1831). 

 Pentonyx capensis, Du7n. ^- Bihr. ii. p. 390, pi. xix. fig. 2 (1835) ; A. 



Dum. Arch. Mus. x. pi. xiii. fig. 3 (1800). 

 gehafie, Riippell, N. Wirbelih. Faun. Abyss, p. 2, pi. i. (1835) ; 



A. Dmn. Cat. Meth. Rept. p. 18 (1851), a^id Arch. Mus. vi. p. 245 



(1852), & X. pi. xiii. fig. 4. 



p2 



