304 COLITBBID^. 



Synopsis of the Species. 



A. Scales in 17 rows ; head shielded above. 



Six upper labials, fourth entering the eye. . 1. eydouocii, p. 304, 

 Two or three upper labials, second covering 



nearly the whole lip 2. annulatus, p. 304, 



B. Scales in 19 to 25 rows. 



Upper head-shields distinct, more or less 



broken up ; scales in 21 to 25 rows. ... 3. Iceois, p. 305. 

 Head covered with small scales ; scales in 



19 rows 4. austrdlis, p. 305. 



1. Aipysums eydouxii. 



Tomogaster eydouxii, Gray, Cat. p. 59 (1849). 



Thalassophis anguiUeeformis, Schmidt, Abh. Naturui. Hanib. ii. 1852, 



p. 76, pi. i. 



mursenEeformis, Schmidt, I. e. p. 77. 



Aipyiiurus Isevis (non Lac6p.), Ouichen. Voy. P8le Sud, Zool. Hi, 



Sept. p. 2], pi. vi. (1853) ; Bum. ^ Bibr. vii. p. 1326, pi. Ixxvii b. 



fig. 4 (1854) ; Fischer, Abh. Natww. Ramb. iii. 1856, p. 32 ; Jan, 



Icon. Q&n. 40, pi. ii. fig. 1 (1872). 

 margaritophorus, Bleek. Nat. Tijdschr. Nederl. Ind. ivi. 1858- 



p. 49. 

 anguillaeformis, QiXnth. Sept. Brit. Ind. p. 857 (1864) ; Boettg, 



Zool. Anz. 1892, p. 420. 



Eye a little longer than its distance from the mouth. Eostral a 

 little broader than deep ; upper head-shields regular ; frontal large, 

 once and two thirds to twice as long as broad, longer than its- 

 distance from the end of the snout, as long as or a little longer 

 than the parietals ; nasal in contact with or narrowly separated 

 from the praeocular ; one prse- and two postoculars ; temporals 1-1-2 

 or 2-|-2 ; six upper labials, fourth entering the eye ; anterior chin- 

 shields shorter than the posterior, which are separated by an azygous 

 shield. Scales smooth, in 17 rows. Ventrals 140-142. Dark 

 brown above, with cross-bands of yellow, black-edged scales, often 

 broken up on the vertebral line ; these bands widening towards 

 the belly, which is yellow, with or without dark brown spots. 



Total length 490 millim. ; tail 70. 



Coasts of Singapore, Java, and the Philippines. 



a. $ (V. 142). Indian Ocean. (Type.) 



6. 5 (V. 142). Java. Dr. Bleeker. (Type of 



At. margaritophorus.) 

 c. 2 (V. 140). Java. 



2. Aipysurns anntilatus. 



Emydocephalus annulatus, Krefft, Proc. Zool. Soc. 1869, p. 322, and 



Sn. Austral, p. 92 (1869). 



tuberculatus, Krefft, I. c. pp. 322, 93. 



Aipysums chelonicephalus, Bavay, Mem. Soe. Linn. Norm. xv. no. 5, 



1869, p. 34. 



