286 HENRY B. BRADY. 



Glohigerina digitata, nov. — is a very singular modification 

 of the type^ and one that has not hitherto been described. 

 The earlier segments are commonly regular and trochoid, 

 but the later ones are much elongated and spreading. 

 In some specimens, generally of small size, the final segment 

 only is extended, like the index finger of the hand, but in 

 others, two, three, or more chambers radiate in palmate 

 fashion. The apertures of the chambers have thickened or 

 lipped borders. It is a rare form, and usually of small size, 

 -V inch (0'5 millim.), but in one dredging specimens have 

 been met with measuring ^. inch (r5 millim.) in diameter. 



Glohigerina infiata, d^Orbigiiy (' For. Canar./ p. 134. pi. 

 2, fig. 7 — 9) — is of plano-convex shape, the superior or spiral 

 face being flat, the inferior convex. There is no umbilical ves- 

 tibule, and the aperture of the last segment is the only orifice 

 which is visible externally ; this is large and gaping, and con- 

 stitutes a distinctive feature. Gl. infata is the isomorph of 

 Hotalia Soldanii and Pidvimdina crassa, and it is even 

 difficult sometimes to distinguish it from the latter species. 



Glohigerina Dutertrei, d'Orbigny (' Foram. Cuba,' p. 95, 

 pi. 6, fig. 22 — 24). — I am disposed to recognise this as a 

 convenient name for a small, thick, rounded variety, more 

 compactly built than Gl. hulloides, and having no um- 

 bilical vestibule, but a single, comparatively small, arched 

 orifice, with thickened lip. It has neither the flat superior 

 surface nor the gaping aperture of Gl. infiata. 



Glohigerina rubra. d'Orbigny (' Foram. Cuba.,' p. 94, 

 pi. 4, fig. 12 — 14) — exhibits, perhaps, the most important 

 deviation of all from the type of structure with -vVhich we 

 started. The test is more or less trochoid, often relatively 

 very tall, and has about three segments in each convolution. 

 The inferior surface has one arched aperture on the umbilical 

 margin of the last segment, but many of the segments 

 have either one or two large, more or less rounded orifices 

 on their superior surface, close to the sutural depressions. 

 Fresh specimens have a pink tinge, and the earlier cham- 

 bers especially are often of very bright colour. It is to be 

 regretted that d'Orbigny's name for this species should have, 

 been associated with so variable a characteristic as colour, the 

 more so as in his description he makes prominent allusion 

 to the numerous apertures. Several of the Glohigerina 

 show a tendency to pink colouration, though none to the 

 same extent as Gl. ruhra. 



Glohigerina cotiglohata, nov, — is a large subglobular modi- 



