488 
Proceedings of Royal Society of Edinburgh . [sess. 
Pantocsek’s figure does not show the fasciculation, though this is 
distinct in his specimens. 
Habitat. — From ice in lat. 74° 48' 4" N., long. 54° 52' 8" E., 
Aug. 2, 1872 (Grunow); San Prancisco, Cal. (Firth!); Los Angelos, 
Cal. (Griffin !) ;* Oran, Algeria (Van Heurck !) ; soundings off Kurile 
Islands, 1329 fathoms (H. L. Smith!);! Barbados (Johnson !);J 
Richmond deposit, Va. (Rae!); Kekko deposit (Grove!); Jack’s 
Ranch, Cal. (Macrae !) ; Szakal and Szent Peter deposits (Pan- 
tocsek !). 
Var. kariana. Cleve and Grun., Kong. Sv. Vet.-Ak. Handl 
Stockh ., 1880, p. 113, pi. vii. fig. 129. — Diam. '023 to *024 mm. 
Central space absent. Markings distinct, 11 to 12 rows in each 
fasciculus and 13 J to 14 in *01 mm.; apiculi interfasciculate, 
distinct. — Odontodiscus curvatulus , var. kariana , Cleve and Grun., 
ibid., 1880, p. 113. 
Habitat. — Kara Sea (Cleve and Grunow) ; Pinmark (Cleve). 
Yar. subocellata. Grun., ibid ., 1884, p. 83, pi. iv. (D), fig. 15, 
from Bolivian guano and Cape of Good Hope (Grunow) ; Ker- 
guelen Island and Challenger dredgings off Vancouver Island 
(Grove !), belongs to Actinocyclus. 
Yar. recta , nov. C. curvatulus , var., Cstr., Diat. Cliall. Exped ., p. 
160, pi. iii. fig. 10. — Diam. *03 to *0875 mm. Markings 4 to 5 in 
•01 mm., arranged in straight fasciculi; apiculi distinct, inter- 
fasciculate, sometimes absent. Border with slight indentations 
opposite the apiculi. — Cleve and Moll., Diat., Nos. 57, 164, 276 ; 
Janisch, Gazelle Exped., taf. i. fig. 6 ; taf. iv. fig. 4. 
This var. approaches var. minor. Specimens have sometimes 
been confounded with C. barbadensis, Grev., or regarded as fasciculate 
forms of C. oculus-iridis. 
Habitat. — H.M.S. Challenger (Castracane) ; Richmond; Sta 
Monica deposit, California (Cleve and Moller !) ; Barbados deposit 
(Cleve !) ; Yokohama (Cleve !) ; Monterey stone (Cleve !) ; San 
Benito deposit, California (Grovel); Marstrand (Kinker !). 
* In the collection of Dr F. W. Griffin. 
+ In H. L. Sm. Diat. Spec. Typ., No. 93. 
+ In the collection of Dr Greville. 
