258 MELANIIDJ!. 



subvar. intermedia. 



Brot, Coneh.-Cab. II, pi 13, fig. 11, as M. gpinosa, var. B. 



3 Tezpore [Assam] j coll. Dr. F. 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. variabilis and M. episcojpalis. 



var. pseudospinosa. 

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



I can detect no good cliaracter 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. lA ["ilf. variabilis'''], perhaps better classed as var. suh- 

 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 Sandowiiy River [Arakan] ; ex c. Dr. F. Stoliczka. 



