80 BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
C. foliacea Br., 1884, Chall. Rep., IX. p. 199, Pl. XI. Figs. 5-9. 
C. foliacea Goiis, 1894, Arct. & Scand. Foramf., Sv. Vet. Ak. Hdl, XXV. 9, p. 106, 
Pl. XVIII. Fig. 834. 
Ts often met with both in moderate depths and in very deep water on both 
sides of the Isthmus. 
Pacific. 700-1201 fathoms, 
Caribbean Sea, 20-300 fathoms; not scarce. 
SPIROLOCULINA. Ors. 
S. canaliculata »'Onn. 
S. canaliculata D'ORB., 1846, Bass. tert. Vienne, p. 269, Pl. XVI. Figs. 10-12 (young 
and compressed). 
This variety can but faintly be distinguished either from the typic planu- 
lata LAMARCK, or from limbata both of D'OrBIGNY and Bornem. In full 
grown specimens the margin is very dilated, and often its furrow is shallow, 
nearly obsolete. "The contour varies from pointed elliptical to nearly round. 
The scooped out sides of the segments make the sutures rise to a sort of lim- 
bation. Length, 1 mm. 
Caribbean Sea. 300 fathoms (Goés). 
S. asperula Karr. 
S. asperula Karr., 1868, Mioc. Foramf. Kostej., Wien. Ak. Sitz. Ber., LVIII. p. 137, 
Pl. I. Fig. 10. 
S. asperula BR., 1884, Chall. Rep., IX. p. 152, Pl. VIII. Figs. 13, 14. 
Very indistinctly and scantily represented in the “ Albatross” collections. 
Pacific. 1132 fathoms ; rare. 
S. robusta Brapy. 
S. robusta BR., 1884, Chall. Rep., IX. p. 150, Pl. IX. Figs. 7, 8. 
This prominent species is represented in a few well developed samples from 
the “Albatross” collections, Full grown specimens have often the last segments 
obtusely carinate, the keel often dividing itself into the 3 or 4 weak ribs. 
Caribbean Sea. 210 fathoms ; rare. 
SIGMOILINA ScuLUMBERGER. 
S. sigmoidea Brapy. 
Planispirina sigmoidea Br., 1884, Chall. Rep., IX. p. 197, Pl. IT. Figs. 1-8; woodcut, 
p. 194. 
Goiis, 1882, Ret. Rhizop. Caribb. Sea, Sv. Vet, Ak. Hdl, XIX. 4, Pl. IX. Figs. 
330-334. 
S. sigmoidea Sonuumn., 1887, Genre Planispirina, Bull. Soc. Zool. Fr., XII. p. 106, 
Pl. VII. Figs. 9-11. 
