20 COLTTBEID^. 



rows ; ventrals rounded. Tail short, feebly compressed ; subeaudals 

 in two rows. 

 Iforth Australia. 



1, Myron richardsonii. 



Myron richardsonii, Oray, Cat. p. 70 (1849). 



Neospades kentii, Be Vis, Pfoc. R. Soc. Queensl. vi. 1889, p. 238, 

 pi. xiv. 



Eostral nearly as deep as broad ; frontal as long as or a little 

 longer than broad, as long as its distance from the rostral or the end of 

 the snout, shorter than the parietals ; loreal a little longer than 

 deep ; two prse- and two postoculars : temporals 1 + 2 ; eight or 

 nine upper labials, fourth or fifth entering the eye ; three pairs of 

 chin-shields in contact on the median line, the anterior in contact 

 with three or four lower labials. Scales rather feebly keeled, in 21 

 rows. Ventrals 138-140 ; anal divided ; subeaudals 30-35. Grey 

 or olive above, with black cross-bars ; head blackish ; ventrals 

 yellowish or pale brownish, edged with blackish in front, and with 

 a more or less distinct dusky median streak. 



Total length 415 millim. ; tail 60. 



North Australia. 



a. 2 (V. 140 ; C. 35). N.W.Australia. Sir J. Eichardsou [P.]. (Type.) 



b. 2 (V. 140 ; 0. 30). Port Esaington. 



Both specimens are unfortunately in bad condition. 



129. GERARDIA. 



Gerarda, Gray, Cat. Sn. p. 77 (1849) ; Boulenq. Faun. Ind., Rent. 



p. 379 (1890). 

 Campylodon, Dum. ^ Bibr. MAn. Ac. 8c. xxiii. 1853, p. 499, and 



jErp. Okn. vii. p. 963 (1854) ; ,Tan, Arch. Zool. Anat. Phys. iii 



1865, p. 263. 

 Heleophis, F. MiXU. Verh. Nat. Ges. Basel, vii. 1884, p. 286. 



Maxillary teeth 10, very small, followed by a pair of enlarged 

 grooved teeth; mandibular teeth subequal. Head small, not 

 distinct from neck; eye small, with vertically subelliptic pupil; 

 head-shields large ; nostril in an undivided nasal ; a single inter- 

 nasal, separating the nasals ; loreal present. Body C5'lindrical ■ 

 scales smooth, without pits, in 17 rows; ventrals rounded. Tail 

 moderate ; subeaudals in two rows. 



India, Burma and Ceylon. 



1. Gerardia prevostiana. 



Coluber (Homalopsis) prevostiamig, Byd. ^ Gerv. in Gu6r. Mao 

 Zool., 01. iii. 1837, pi. xiii., and Voy. Favm-ite, v. Zool -a 70 

 pi. xxix. (1839). ■ a- i^, 



Gerarda hicolor. Gray, Cat. p. 77 (1849) ; Gunth. Ann. Sr Mao TV 

 S. (4) i, 1868, p. 421 1 Theob. Cat. Rept. Brit. Ind. p. 180 (187G)'. 



