i8 DISCOVERY REPORTS 



A very interesting record among the Discovery Lagenae is Lagena glohosa var. 

 tenuissimestriata, Schubert (No. 343), known previously only from a fossil Globigerina 

 ooze (Miocene) in the Bismarck Archipelago, New Guinea. It was found at two 

 stations in the Bransfield Strait region. 



Cushman has recently published a report (C. 1932, etc., TPA) on the Foraminifera of 

 the Tropical Pacific collections of the 'Albatross'. The course of the ship ran approxi- 

 mately down the meridian of 140° W from 20° N to 20° S, then along the parallel of 

 20° S to 180° W then N and NW to 150° E, covering both deep and shallow waters. He 

 records over thirty species and varieties of Logena but, with the exception of L. ampulla- 

 distoma, which is a not uncommon species in Indo-Pacific shallow waters, none of the 

 foregoing forms and very few of Sidebottom's south-west Pacific species are in his list. 

 It seems obvious therefore that the central Pacific fauna has very little in common with 

 that of the south-west Pacific, and that the Pacific species found in the Antarctic 

 originated in the more distant south-westerly region of that ocean. 



There are a few species belonging to other genera which support this theory. 

 Gaudryina ferriiginea, H.-A. and E. (No. 245), a very distinctive little species, was 

 described in the Terra Nova report from oflF the North Cape, New Zealand, in 

 70 fathoms, where it was not uncommon, but it was not found in the Ross Sea. It had 

 not been recorded from any other locality until it was rediscovered at three stations 

 spread over the Drake Strait, Scotia Sea and Bellingshausen Sea. The specimens are 

 quite typical except that they are rather neater in construction owing to the finer sand 

 used, a change due to the deeper water, 261 1-3744 "^• 



Hyperammina novae-zealandiae, H.-A. and E. (No. 1 19), a very strongly defined species, 

 was described as abundant at the same Terra Nova Station in New Zealand, but was 

 not found in the Ross Sea. It turned up again in the Falklands area and in South 

 Georgia, and may be present in the Weddell Sea (see p. 11 a7ite). Now it is recorded 

 from the Bellingshausen Sea. Its range extends much farther to the east, for Wiesner 

 records it as "typical", off the Cape of Good Hope, and " sandy" (which may not be 

 the same organism) still farther east near the Crozet Islands. I cannot recall that the 

 species has been recorded elsewhere, and it is difficult not to associate such a circum- 

 polar distribution with the West Wind Drift. 



Ophthalmidiiim margaritifenim, H.-A. and E. (No. 44), also discovered at the same 

 Terra Nova station, occurs as a single specimen at St. 177 in the Bransfield 

 Straits. 



Cassidulina elegans, Sidebottom (No. 290), is a rare but very distinctive species 

 originally found in one of the 'Waterwitch' soundings in the south-west Pacific, and 

 known only from other soundings taken in the north-west Pacific between Guam and 

 Japan. A few perfectly typical specimens have been found in the deep water of the Drake 

 Strait within the Antarctic convergence. 



Cassidulina pacifica, Cushman (No. 291), is known under the name Cassidulina 

 calabra, Brady non Seguenza, from many records in the Indo-Pacific and south-west 

 Pacific regions. It occurs at two stations in the Drake Strait within the convergence. 



