1854.] Notices and Descriptions of various Reptiles. 287 



of Ammonia ; both assays demonstrating clearly the perfect truth of 

 the foregoing details. 



Postscript. 

 It was correctly remarked, I think by Major Baker, when this 

 paper was read at the meeting of the Society, that water taken at 

 the surface would hold less silt in suspension, as that at the bottom 

 would hold more, than the true mean amount. Agreeing fully in 

 this, I have contrived a plan for obtaining water at any moderate 

 depth, and am collecting another series of specimens to include both 

 the surface and the mean depth water. I have moreover obtained 

 the assistance of Mr. H. Hiller, Commanding the H. 0. Outer 

 [Floating Light Vessel, and have supplied him with directions so that 

 I trust we shall be able to have this singular problem fully investi- 

 gated in a year or two. 



H. P. 



Notices and Descriptions of various Reptiles, new or little known. — 

 By Edward Eltth. 

 (Continued from Vol. XXII. p. 655.) 

 Calamaria catenata, nobis, n. s. (C. nionticola ? Cantor, P. Z. 8. 

 1839, p. 50).* No anterior frontals : the vertical plate broad, pen- 

 tagonal, and almost as large as the occipitals : 13 rows of scales : 

 scutse 187; scutellse 41 pairs. Predominant colour dusky above, 

 formed by minute black specks upon a pale ground-tint ; below pale 

 buff with an iridescent lustre, and marked with lateral series of 

 square black spots chiefly upon alternate scuta?. Pour black lines 

 throughout above, the upper bordering a pale medial streak, which is 

 simple upon the tail, but along the body forms a concatenation of 

 elongated oval spots. An imperfect whitish-buff collar, and similar 

 marks before and behind the eye. Length of specimen 17 in., of 

 which tail 2\ in. Prom Asam. Mr. Eobinson.f 



C. reticulata, nobis, n. s. Vertical plate hexagonal, angulated 

 to the front, and not half so large as the occipitals : supra-orbital 



* " C, olivaceo fusca, collari, lateflavo, lined dorsali albicante, abdomine citri- 

 no. Scut. abd. 125; scutel. subcaud. 44. Hab. Naga Hills." 



t This and other species sent by Mr. Robinson, we much suspect are from the 

 Khasya hills, or other upland territory^ 



