1. ACrOCHORDUS. 2. CHERSYDEUS. 173 



1. ACROCHORDUS. 



Acrocliordiis, Horndedt, Ahh. Acad. Stovkholm, viii. 1787, p. 307 ; 



Daud. Rept. vii. p. 388 (1803) ; Cfray, Cat. Sn. p. (i] (1849) ; Dtim. 



4' Bibr. Erp. Gen. vii. p. 34 (1854) ; Gihit/i. Itept. Brit. Ind. p. 335 



(1864). 

 Acrochordus, part., Schle;/. Phi/s. Serp. ii. p. 424 (1837). 

 Potamophis, part., Schmidt, Abh. Naturic. Hamb. ii. 1852, p. 75. 



Teeth subequal, about 15 in each maxillary. Head not distinct 

 from neck, small, covered with granular juxtaposed scales ; nostrils 

 close together on the top of the snout ; eye very small, with ver- 

 tically subelliptic pupil. Body stout, slightly compressed ; scales 

 very small, tubercular, spinose ; no ventral shields. Tail short, 

 subcylindrical, prehensile. 



Malay Peninsula and Archipelago ; IS'ew Guinea. 



1. Acrochordus javanicus. 



Acrochordus javanicus, Hor)istedt, Abh. Acad. Stockh. viii. 1787, 

 p. 307, pi. xii. ; Shniv, Nat. Miscell. v. pi. cxlviii. ( — ?) ; Daud. 

 Rept. vii. p. 390, pi. Ixi. fig. 42 (1803) ; Schleg. Phijs. Serp. ii. 

 p. 428(1837), and Abbild. pi. xvii. figs. 12-14 (1839); Cantor, 

 Cat. Mai. Rept. p. 58 (1847) ; Graij, Cat. p. 62 (1849) ; Bum. <§- 

 Bibr. vii. p. 35 (1854) ; Jan, Icon. Gen. 1, pi. iv. (I860) ; Gilnth. 

 Rept. Brit. Ind. p. 336 (1864) ; F. Miill. Verh. nat. Ges. Basel, 

 viii. 1887, p. 267. 



dubius, Shaw, Zool. iii. p. 575, pi. cxxix. (1802). 



Potamophis javauica, Schmidt, Abh. Naturw, Hamb. ii. 1852, p. 75. 



Head-scales very small, rough, larger and flat towards the mouth ; 

 no shields of any kind. About 120 scales round the body, dorsals 

 largest. Brown or olive above, more or less distinctly spotted, 

 striped, or marbled with black ; lighter beneath. 



Total length 1300 millim. ; tail 180. 



Malay Peninsula, Java, JS^ew Guinea. 



a, b. Yg. Pinang. Dr. Cantor. 



c. Ad., stfTd. E. Indies. E. India Company. 



d, e. Many yg. E. Indies. E. India Company. 

 f, a. Y<r. E. Indies. Gen. Hardwicke 

 ^ [P.]. 



k. J. Java. Dr. Bleeker. 



i. c?. Java. A. Scott, Esq. [P.]. 



Jc-7n. 2 , hgi"-) & yg- Flv River, New Rev. S. Macfarlaue 



Guinea. [C.]. 



2. CHERSYDRUS. 



Hydrus, part., Schneid. Hist. Amph. i. p. 233 (1790). 



Chersvdrus, Cnv. Rer/ne Anim. ii. p. 75 (1817) ; Graij, Cat. Sn. p. 60 



(1849) ; Bum. cV liihr. Erp. Gen. vii. p. 40 (1854) ; Gilnth. Rept. 



Brit. Ind. p. 336 (1864) ; Boideng. Faun. Ind., Rept. p. 355 (1890). 



