51. DRYOCALAMUS. 369 



its distance from the end of the snout, much shorter than the 

 ])arietals ; lorcal as long as deep or a little longer ; two prae- and 

 two postoculars ; temporals 2-f-2 or 2 + 3; nine upper labials, 

 fourth and fifth entering the ej'e ; four or five lower labials in 

 contact with the anterior chin-shields, which are a little longer 

 than the posterior. Scales in 17 rows. Vontrals 195-214 ; anal 

 entire ; subcaudals 112-123. Greyish brown above, with a dorsal 

 series of large oval or subquadrangular brown, black-edged spots 

 and, on each side, a series of smaller spots alternating with the 

 dorsals ; head spotted or marbled with brown ; yellowish beneath, 

 uniform or with scattered brown dots. 



Total length 740 millim.; tail 220. 



Philippines. 



a. 2 (V. :210; C. 12:3). Siu-i<rao. A. Everett, Esq. [C.]. 



h, e, d. 2 (V. l>09, 214, Philippines. 11. Cuming, Esq. [C.j. 



11)5; C. 114, 118, 112). 



51. DRYOCALAMUS. 



Nympha {non Marfini), Fitziuj/. X. Clas^. Itept. p. 29 (1826). 



Lycocloii, part., Scldoi/. Phys. t^erp. ii. p. 104 (1837). 



Odontonuis {non Kirbi/), Bum. 4' Bibr. Mem. Ac. Sc. xxiii. 18-5.3, 



p. 463, and Eiy. Gen. vii. p. 4oO (18-34); Giinth. Cat. Col. Sn. 



p. 206 (1858) ; Jan, Elenco sist. OJid. p. 95 (1863) ; Gdnth. llept. 



Brit. Lid. p. 233 (1864). 

 Dryocalamus, Giinth. Cat. p. 121. 

 Ilydrophobus, Giinth. Ann. Sf Mar/. .V. H. (3) ix. 1802, p. 127; 



'Boidenff. Faun. Iml, Kept. p. 297 (1890). 

 Nvniphophidiiun, Giinth. Rept. Brit. Ind. p. 235. 

 Ulupe, Blanford, Jonrn. As. Soc. Ben;/, xlvii. 1878, p. 129. 



Maxillary teeth 8 to 10, rather short but stout, increasing in size 

 posteriorly ; anterior mandibular teeth a little longer than the 

 posterior ; one or two more or less distinct tooth-like knobs on the 

 basisphenoid. Head distinct from neck, much depressed ; eye 

 moderate or rather large, with vertically elliptic pupil. Body 

 slender, slightly compressed ; scales smooth, in 13 or 15 rows, with 

 apical pits : ventrals strongly keeled on each side. Tail moderate ; 

 subcaudals in two rows. 



South-eastern Asia. 



Si/noj^sis of the Species. 

 I. One or two praeoculars. 



Rostral not twice as broad as deep ; scales 



in 13 rows 1. nympha, p. 370. 



Rostral not twice as broad as deep; scales 



in 15 rows 2. subannulatiis, p. 371 - 



Rostral twice as broad as deep ; scales 



in 15 rows 3. gracilis, p. 371. 



VOL. I. 2 b 



