INDO-PACIFIC PROVINCE. 13 
the east coast of Africa; Littorina conica and melanostoma, in 
the Bay of Bengal; Littorina sinensis and castanea, and Haliotis 
venusta, on the coast of China; Littorina scabra andi Hf. squamata, 
in N. Australia; H. asinina, New Guinea; and L. picta, at the 
Sandwich Islands. 
Red Sea (Erythreean). 
Of the 408 mollusca of the Red Sea, collected by Ehrenberg 
and Hemprich, 74 are common to the Medit., from which it 
would seem that these seas have communicated since the first 
appearauice of some existing shells. Of the species common to 
the two seas 40 are Atlantic shells which have migrated into the 
Red Sea by way of the Medit., probably during the newer 
plocene period; the others are Indo-Pacific shells which ex- 
tended their range to the Mediterranean at an earlier age. 
The genera wanting in the Medit. but existing in the Red 
Sea, show most strikingly their diversity of character, and the 
affinity of the latter to the Indian fauna. 
Pteroceras. Ancillaria. Siphonaria. Limopsis. 
Strombus, 8 sp. Harpa. Placuna. Tridacna. 
Rostellaria. Ricinula. Plicatula. Crassatella. 
Turbinella. Mazgilus. Pedum. Trigona. 
Terebra. Pyramidella. Malleus. Sanguinolaria. 
Eburna. Parmophorus. Vulsella. Anatina. 
Oliva. Nerita. Perna. Aspergillum. 
Other genera become abundant, suchas Conus, of which there 
are 19 species in the Red Sea, Cyprea 16, Mitra 10, Cerithium 
17, Pinna 10, Chama 5, Circe 10. 
Persian Gulf. 
The marine zoology of the Persian Gulf and adjoining coast 
has not been yet explored.* The following shells were picked 
up on the beach at Kurrachee by Major Baker, with many 
others evidently new, but not in a satisfactory state for descrip- 
tion. (1850.) 
Rostellaria curta. Purpura persica. Sigaretus sp. 
Murex tenuispina var. »  cavrinifera, Odostomia sp. 
Pisania spiralis. Columbella blanda. Phorus corrugatus. 
Ranella tuberculata. Oliva subulata. Planaxis sulcata. 
»  Spinosa. yy Indusica. Imperator Sauliz. 
»  crumena. »  ancillaroides. Monodonta sp. 
Triton lampas. Cyprea Lamarckii, Halictis sp. 
Bullia sp. »  ocellata. Stomatella imbricata. 
Eburna spirata. Natica pellis-tigrina, + sulcifera. 
* The “Brindled Cowry ” (Cyprea princeps), from the Persian Gulf, was value 
st £50, 
E 
