52 DISCOVERY REPORTS 



Sub-family PENEROPLIDINAE 

 Genus Cornuspira, Schultze, 1854 



37. Cornuspira involvens (Reuss) (F 46) (SG 29). 

 Six stations: 170, 175, 177, 190; WS 482, 515. 



Rare or very rare everywhere. Both megalospheric and microspheric individuals 

 were found, but never at the same station except at St. 190. The microspheric specimens 

 often attain a moderately large size, but all the megalospheric individuals are very small. 



38. Cornuspira selseyensis, Heron-Allen and Earland (F 48) (SG 30). 

 One station: WS 482. 



Three good specimens, all megalospheric, were found at St. WS 482. 



39. Cornuspira foliacea (Philippi) (F 50) (SG 31). 

 Four stations: 164, 167, 170; WS 482. 



Only a few specimens at each station, fairly large at St. WS 482. They are all of the 

 original type of Philippi, in which the width of the tube increases but slowly, as com- 

 pared with the rapid development of width shown in Williamson's figure of the species. 



40. Cornuspira diffusa, Heron-Allen and Earland (SG 32). 

 Two stations: 167, 366. 



Not uncommon at St. 167, where characteristic fragments of small specimens were 

 frequent. One similar fragment from a large specimen was found at St. 366. 



Genus Gordiospira, Heron- Allen and Earland, 1932 



41. Gordiospira fragilis, Heron-Allen and Earland (SG 33). 

 One station: 167. 



Well-developed specimens were frequent at St. 167, off the South Orkney Islands, 

 depth 244-344 m. Its absence from any other gathering is rather remarkable. 



The genus has been recorded recently from the north-east coast of Greenland, a very 

 striking illustration of widely separated distribution {Gordiospira arctica, Cushman, 

 1933, NAF, p. 3, pi. i, figs. 5-7). The Arctic species appears to be almost identical with 

 the South Georgia type. 



Genus Spirophthalmidium, Cushman, 1927 



42. Spirophthalmidium acutimargo (Brady). 



Spirolociilina acutimargo (pars), Brady, 1884, FC, p. 154, pi. x, fig. 13. 

 Spirophthalmidium acutimargo, Cushman, 1925, etc., LFR, 1927, p. 37, pi. viii, fig. 5. 

 Spirophtlialmidium acutimargo, Cushman, 1918, etc., FAO, 1929, p. 90, pi. xxii, fig. i. 



One station: WS 403. 



A single specimen from a depth of 3721 m. Although very small, it exhibits in per- 

 fection the spiral coil following the proloculus and preceding the series of alternate 

 chambers, on which Cushman established the genus Spirophthalmidium. This is probably 

 a "farthest south" record for a species which has a wide distribution. 



