36 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



Family CALAMARID^E. 



Mainophis (new genus.) 



Body moderately stout, cylindrical ; tail short, tapering to a 

 blunt point ; head narrow ; two pairs of frontal shields, the ante- 

 rior pair small,- the posterior large, and occupying the position of 

 the loreal ; nostril between two nasal shields, the anterior much 

 the largest; one anterior and two posterior ocular shields; super- 

 ciliary shield small ; six upper labial shields ; eyes small ; scales 

 smooth, and somewhat triangular and rounded at the apex ; anal 

 plate bifid ; subcaudals in two rows. 



This genus seems to resemble in many points the genus Bra- 

 chyorrhos, of Kuhl. The entire anal plate of the latter necessi- 

 tates the separation of the genera. 



4. — Mainophis robusta. 



Head moderately flat, and scarcely narrowed into a neck 

 behind ; posterior frontal shield abutting on the second labial. 

 Back of a dark lead colour, with the scales on the sides edged 

 with white ; abdominal shields quite white Scales in 17 rows. 

 Abdominal shields 161, subcaudals 46-46. Total length, 2 feet 

 6 inches ; length of tail 5 inches, and of head 1 inch. 



Two specimens were procured at Katow. 



Katophis (new gends.) 



Body and tail rather elongate, head rather narrow with a 

 slightly constricted neck ; two pairs of frontal shields, a loreal 

 and one anterior and three posterior orbitals ; eight upper labials ; 

 scales elongate, keeled, the outer scale on each side square and 

 not keeled on the anterior half of the body; anal plate bifid; sub- 

 caudals in two rows ; eye large, pupil rounded ; teeth equal, 

 smooth . 



I do not know any genus approaching this, unless it may be 

 Elapoidis, of Boie. 



5 — Katophis plumbea. 

 Scales in 15 rows ; abdominal plates 142, subcaudals 67-67, 

 Total length, 2 feet 3 inches. Tail, 6| inches ; head, 10 lines. 



