496 Proceedings of Royal Society of Edinburgh. [sess. 
(Hooker) ; Canton (Ehrenberg) ; Yokohama and Arica (Schmidt) ; 
Ascidia , Hull (Greville !), rice fields, Georgia (Grove ! Bailey,* 
Greville !) Yszee (Kinker !) ; dredged in 28 fms., Royal Sound, 
Kerguelen, by H.M.S. Challenger (Rae!);f “Antarctic Ocean” 
(Cleve and Moller !) : rice field mud, Savannah (Cleve ! 
H. L. Smith !) Cambodia (Hardman ! J Firth !) ; Port Elizabeth 
(Hardman !) ; Humber (O’Meara !) ; Richmond Tunnel (O’Meara !) ; 
“India” (Macrae !); § Holstein (Van Heurck!); Maryland 
(O’Meara!); Japan (H. L. Smith!); Los Angelos deposit 
(O’Meara !) ; Cannibal Islands (Greville !) ; Gazelle Expedition 
(Weissflog !) ; Macassar Straits (Grove!); mud from Gliickstadt ; 
Elbe, above Cuxhaven (Rabenhorst and Schwarz !) ; Archangelsk 
(Cleve); Campeachy Bank, Gulf of Mexico (Rabenhorst and Gersten- 
berger !) ; Rappahannock River, Ya. (Rogers ! Greville !) ; on 
Dutch rushes, Hull (Norman !) ; Virginia (Greville !) ; Indian 
Ocean soundings, Capt. Pullen, 2200 fms. (Greville !) ; Kannaliack, 
Cannibal Islands (Greville!); Woodlark Island (Roberts!); Bass 
Straits (Greville!); Kamtschatka, 1700 fms. (Greville!); Jersey 
(Wallich !) ; Patos Island guano (Greville !); shell cleanings from 
Singapore (Hardman!); Nicobar shell cleanings (Doeg !) ; Santa 
Marta deposit (Doeg !) ; coral washings, Mauritius (Doeg !) ; 
Newcastle deposit, Barbados (Doeg!); N. Atlantic, lat. 51° 20' N., 
long. 52° 25' W., 232 fms. (O’Meara!); Wexford (O’Meara!); 
Eaeroe Isles (Grove !) ; Monkstown (O’Meara !) ; Jack’s Ranch 
California (Macrae !) ; Monterey (Schmidt) ; Upolu (Weissflog) ; 
Nancoori; Sta Monica deposit; Patagonia; Delaware; North 
Carolina ; Pensacola ; Cape Wankarema (Cleve ! Cleve and 
Moller !) ; Balearic Islands (Cleve !) ; Greenland, Yeddo, Franz 
Josef’s Land, Peruvian guano, Pabillan di Pico guano, Patagonian 
guano, Schleswig Holstein; Elbing, West Prussia; Labuan, Virgin 
Islands (Cleve !). 
Var. siberica. Grun., Kongl. Sv. Vet. -Ah. Handl. Stochh ., 
* Found in various localities in United States in 1850. Its presence, with 
other brackish or salt water species in the rice fields, has been held to 
ndicate the presence of salt water much further up the river formerly than at 
present. 
t In the collection of Dr F. W. Griffin. 
t In the collection of Julien Deby. 
§ In the collection of Dr Greville. 
