428 MR. F. CHAPMAN ON DEEP-SEA FORAMINIFERA 



Genus Argillcecia, G. 0. Sars. 



Argillcecia ebuenea, G. S. Brady. 



Argillcecia eburma, G. S. Brady ('80), Rep. Chall. Zool. pt. iii. p. 40, pi. 4. figs. 1-15 ; 

 Egger ('01), p. 422, pi. 4. figs. 49-51. 



This species has previously occurred in the S. Atlantic and the S. Indian 

 Oceans. It appears to be a new record for the S. Pacific. 



Occurrence.—^iix. 11, 1417 £ms. ; 13, 1050 fms. ; 20, 1215 fms. 



Argillcecia affinis, Chapman. 



Argilloscia affinis, Chapman ('02"^), p. 419, pi. 37. figs. 1 a-c. 



A. affinis was described in a former paper from a single sounding of the 

 present series, yiz. Sta. 2, 1489 fathoms. It is now recorded from three 

 other soundings, and in three out of the four it is accompanied by A. ehurnea. 



Occurrence.— ^t^. 2, 1489 fms. ; 3, 2715 fms. ; 11, 1417 fm"s. ; 13, 1050 

 fms. 



Argillcecia gracilior, sp. nov. (Plate 56. figs. 18 a, h.) 



Description. — Carapace elongate, compressed ; seen from the side, sub- 

 pyriform ; height about one-third the length. Dorsal border gently arched, 

 sometimes flattened in the middle ; antero-ventral border rounded ; near the 

 middle of the ventral margin there is a well-marked sinus, followed by a wide 

 convexity curving to meet the posterior extremity at an acute angle. In edge 

 view the posterior extremity is seen to be much more compressed than in 

 A. ehurnea. Length "7 mm. ; height "27 mm. ; thickness of carapace "27 mm. 



Affi,nities. — Related to A. ehurnea, but having a much larger and propor- 

 tionately narrower carapace, as well as the greater posterior compression 

 previously noticed. From A. cylindrica, G. 0. Sars, it differs chiefly in the 

 sharp posterior angle. 



Occurrence. — Sta. 13, 1050 fms. ; 20, 1215 fms. A moderately frequent 

 species. 



Genus Bythoctpris, G. S. Brady. 



Bythocypris elongata, G. S. Brady. 



Bythocypris elongata, G. S. Brady ('80), p. 47, pi, G. figs. 1 a-c; Egger ('01), p. 424, pi. 1. 

 figs. 48-50. 



Brady's specimens were found N. of Tristan d^Acunha, at a depth of 1425 

 fathoms ; Egger's came from near Kerguelen Island, 104 metres. 

 Occurrence. — Sta. 13, 1050 fms, 



Bythocypris sollasi, sp. nov. (Plate 56. figs. 19 a-c.) 

 Description. — Carapace subreniform, compressed. Seen from the side the 

 anterior extremity is broadly rounded ; dorsal margin of left valve strongly 



