1888-89.] Mr John Rattray on the Genus Coscinodiscus. 473 
Raben., Alg. Europ ., Nos. 2481, 2482, 2483, 2484, 2485, 2486 ; 
Van Heurck, Syn. Diat. Belg ., p. 217, pi. cxxxi. fig. 3; Janisch, 
Gazelle Exped., taf. iv. fig. 8; taf. xx. fig. 14; Sch., Atl., pi. lix. 
figs. 27-30 ; H. L. Sm., Diat Sp. Typ., No. 98 ; Cleve and Moll., 
Diat, Nos. 57, 114, 148, 150, 162, 207, 276. C. lineatus, var.? 
Sch., Atl, pi. lix. figs. 31, 32. C. Ehrenbergii, O’Me., Proc. Boy. 
Irish Ac., 1875, p. 264, pi. xxvi. fig. 24. Sp. n. Sch.. Atl., pi. 
cxiv. fig. 13. 
Coscinodiscus lineatus (Weisse, Bull. Ac. Imp. Sci. St Petersb . 
1855, p. 276, pi. i. figs. 2 a, &)is perhaps Didyopyxis subtilis, Ehrb., 
according to Grunow (Denk. Wien. Ak., 1884, p. 92). Schmidt 
separates the specimen figured in his Atl., pi. cxiv. fig. 13, because 
of its convexity. 
Habitat. — Richmond, Ya. (Ehrenherg, Bailey, Hardman ! Cleve 
and Moller !); Caltanisetta, Peruvian and African guanos (Ehrenherg); 
Patos guano (Kinker !) ; Moron (Schmidt) ; marine deposit, Fiji 
Islands (Grove !); Sta Monica deposit, Sta Maria deposit (Grove !); 
Cambridge deposit, Barbados (Hardman !); Barbados (Cleve and 
Moller !); Californian guano (Norman !);* Rappahannock (Bailey!);* 
Nancoori (Cleve and Moller! Cleve! Hardman !);* Ningpo (Kinker!); 
Mascara (Cleve and Moller!); Kamtschatka Sea, 1700 fathoms 
(Bailey !); Indian Ocean, sounding by Capt. Pullen, 2200 fathoms 
(Greville !) ; Japan (H. L. Smith !) ; Singapore (Hardman !); 
Yokohama and Brazil (Schmidt); Mejillones (Cleve! O’Meara); 
Cambodia (Hardman !); f Monte Gubbio (Grove !); edible sea- weeds, 
Indian Ocean (Macrae !); Campeachy Bay (Cleve and Moller ! 
Grove !); Cannibal Islands (Greville !); Andaman Islands (Macrae !); 
Cuxhaven (Bailey); Malahide and Dollymount, county Dublin; 
Ascidia, Roundstone Bay, county Galway (O’Meara) ; Patagonia, 
California (Cleve and Moller !) ; west coast, Florida, U.S. Survey 
(Febiger!); Yeddo; Patagonian guano; near Elbing, West Prussia; Mors 
deposit; Labuan; Kusu; between Aden and Bab-el-Mandeb (Cleve !) ; 
Archangelsk (Cleve); Yera Cruz, among Sertularia ; Laguna, 
Mexico, on stones among Algae ; anchor ground, Laguna Harbour, 
20 miles N. of Laguna in the sea (Rabenhorst and Schwarz !); 
Simbirsk Polirschiefer (Hardman !) ; f Faeroe Channel (Grove !). 
* In the collection of Dr Greville. 
t In the collection of Julien Deby. 
