258 MELANim&l. 



subvar. intermedia. 



Erot, Conch.-Cab. II, pi. 13, fig. 11, as M. spinosa, var. . 

 3 Tezpore [Assam] ; coll. Dr. P. Stoliczka. 



Excellently represented by the above quoted figure. As M. Brot 

 justly remarks [1. c. page 93], it is an interesting and important 

 transitional form between typical M. variaUlis and M. episcopalis. 



var. pseudospinosa. 



Nevill, J. A. S. B. 1881, pi. VI, fig. 17, Assam ; Con. Indica.pl. 75, fig. 6. 



I can detect no good character to distinguish this form 

 from Perak and Malacca specimens ; the spire is usually more 

 produced and less decollate, the ribs more spinose at the angle, 

 which, again, is more central. 



15 Cachar ; coll. Museum Collector. 



Fairly intermediate between M. Brot's pi. X, fig. 2B [" M. 

 sumatrensis "] and his pi. 12, fig. 2 [" M. spinosa "] ; upper 

 whorls longitudinally ribbed. 



Long. 68, diam. 24 mil. ; 9 whorls. 

 6 Tezpore ; coll. Dr . F. Stoliczka. 



One or two of these are scarcely separable from my Perak 

 typical episcopalis. It is possible they had better been classed 

 in subvar. pontificalis ; the sculpture of the upper whorls in all 

 of them is very superficial. 



2 Assam; ex c. Dr. F. Stoliczka. 



Not quite adult; may be the young of M. Brot's pi. 10, 

 fig. 1A [" M. variabilis "], perhaps better classed as var. sub- 

 typica, subvar. subinfracostata. 



17 Namtsik River, Sibsagar and Samaguting [Assam] ; coll. S. E. Peal, 

 Esq., and Capt. Butler. 



Agree fairly with Con. Indica, pi. 75, fig. 6 [" M. spinosa "], 

 one specimen (undoubtedly of the same stock) is very interest- 

 ing, as the last whorl is smooth. 



5 Sandoway River [Arakan] ; ex c. Dr. F. Stoliczka. 



