64 RISSOID2E. 



Subfamily ASSIMINEINJV, Nevill. 



Genus ASSIMINEA, Leach, ms. 



Gray, Lond. Medic. Repos. 1821 [sine descr."], Fleming, Brit. Anim. 182S, 

 and Man. Turf on, 1840, type A. grayana, Leach ; sect. = Paludinella, 

 Pfr., Wiegm. Arch. I, 1841, p. 227, type Helix littorina, Delle Chiaje, 

 Sicily. 



There is a species from the Comoro Islands, Assiminea 

 parvula, Morelet, J. de C. 1877. 



1. Assiminea pinguis. 



Assiminea pinguis, von Martens, Ann. Mag. XVII, 1866, Macao, "in a 

 muddy inlet" long. 6, diam. 4 mil. 



10 Canton River [mouth of ] ; coll. R. Hungerford. Esq. 

 Scarcely separable from Assiminea brevicula. 



2. Assiminea grayana. 



Assiminea grayana, Leach ms., Fleming, Brit. Anim. 1828, near Green- 

 wich. 



6 Mouth of the Thames ; coll. E. Webster, Esq. 



3. Assiminea francesise [emend.]. 



Turbo Francesi, Gray, Wood's Ind. Test. Sup. 1828, E. Indies; = A. fas- 

 data, Benson, Zool. J. 1835, p. 463. 



16 Zwagabin, near Moulmein ; coll. Dr. F. Stoliczka. 

 16 Chandemagore, Calcutta, and Ft. Canning ; coll. Colonel Gr. B. Main- 

 waring and GL Nevill, Esq. 



The original figure of the type has a conspicuous broad 

 white belt at the periphery ; specimens with this band are 

 everywhere much more uncommon than those without it. 



subvar, subconcolor. 



50 Calcutta ; coll G. Nevill, Esq. 

 Long. 10, diam. 6 mil. 



subvar. multifasciata. 



50 Burma ; coll. Dr. F. Stoliczka. 



30 Moisraka, Ranigunj and Port Canning j coll. Gr. Nevill, Esq. 



Long. 10J, diam. 6J mil. type from Port Canning. 



