GOES: FORAMINIFERA. 39 
occurs sparingly in the Caribbean Sea, and is represented in my own collections 
by a few well developed samples, 
Caribbean Sea, 300 fathoms ; rare (Goss). 
V. pusilla, n. 
Plate V, Figs. 6-8. 
Short, often nearly eylindrical, with very little inflated segments, or some- 
times ovoid with inflated segments; aperture a sutural slit or an obliquely 
set comma-formed fissure. Pale yellow or whitish. 
It differs from V. pygmea (EGGER) BRAD, only in being in many instances 
more cylindric in its outlines and in the aperture not being suprasutural and 
limbate as in that; length 0.50-0.66 mm. It may be considered as an immature 
form of Gaudryina scabra BRADY. 
Pacific. 995 fathoms ; scarce. 
TRITAXIA Reuss. 
T. tricarinata Ruuss. 
Text. tricarinata Reuss, 1845, Böhm. Kreidef., I. p. 39, Pl. VIII. Fig. 60. 
Trit. tricarinata Reuss, 1859, Westphal. Kreide, Wien. Ak. Sitz. Ber., XL. p. 228) 
Pl. XII. Figs. 1, 2. 
Trit. tricarinata Br., 1884, Chall. Rep., IX. p. 889, Pl. XLIX. Figs. 8, 9. 
Is sparingly met with on both sides of the Isthmus. 
Pacific. 900 fathoms ; rare, 
Caribbean Sea. 300 fathoms (Goés). 
GAUDRYINA »'Ons. 
G. rugosa D'ORB. 
The representation of this form, given by d’Orbigny in his paper on the 
White Chalk of Paris, Mém. Soc. Géol. France, IV. Plate TV. Figs. 20, 21, does 
not well exhibit its most prominent feature, which is the pyramidal shape 
of its immature or larval stage. Reuss, in his Foramf. d. Tertiäre Schichten 
nórdl. und mittl. Deutschl, Wien. Ak. Sitz. Ber, XVIII. p. 244, Pl. VI. 
Fig. 61, has furnished a more satisfactory design, though even this in the same 
respect is not quite satisfactory. 
Brady, 1884, in Chall. Rep., IX. Pl. XLVT. Figs, 14-16, has better succeeded 
in giving a more exact representation of this form. It has often a tendeney to 
become bigenerina-formed, with a roundish small aperture on the summit or on 
the side of the last segment (Plectina, Marson). 
In the great depths on both sides of the Isthmus it attains a great develop- 
ment, individuals of 4 mm. length not being rare. 
Pacific. 770-1132 fathoms. 
Caribbean Sea. 382-1345 fathoms ; very scarce, 
