60 • GOÉS, RETICULARIAN RHIZOPODA OF THE CARIBBEAN SEA. 



TJvigerina coehlearis, Brunnensis, Parkeri Kärr., 1877, Hoohqu. Wasserl.; Österr. geol. Reiohsanst. 



Abh. 9, p. 385, t. 16, figg. 48—50. 

 » pygmsea var. Park. and Jones, 1865, Northatl. and Aret. Oceans; Phil. Träns. 155. 1, p. 



363, t. 13, figg. 53—57. 



b. /5) Sagrineeformis: 



Sagr. pulehella d'Oeb., 1839, Cuba p. 150, t. 1, figg. 23—24; 1846, For. Bass. tert. Vienne 



p. 252, t. 21, figg. 48— 49 (textularifeformis). 



o) a n g u 1 o s a : 



Uvigerina angulosa Williams., 1858, Brit. rec. förf. p. 67, fig. 140. 



» pygmsea var. angulosa Park. and Jones, 1865, North. Atl. and aret. Oc; Pbil. Transact. 



155. 1, p. 364, t. 13, fig. 58. 

 » trigona Seg., 1862, Rhizop. foss. Catania p. 26, t. 2, fig. 1; Acad. Gioenia Att. 



(2) 18. 

 » eristata Marss., 1876, Eiig. Schreibekr.; Greifsw. Nat. Verein. Mittb. 1877—78, p. 



150, t. 3, fig. 20. 



UvigeriiiJi Auberiana dOrb. 



Tab. IV, figg. 71—75. 



Our form is often more smooth and more slender than d'Oebigny's — also from 

 the West Indies. Uvigerina gracilis Rss. from the »Septaria»-clay at Berlin is prickly, 

 but seems newertheless to belong to this species, as also does Vvig. proboscidea Scwhag. 

 and Uvig. farinosa Hken.; probably also Uvig. canariensis d'Orb. 



One woald be inclined to consider this form as a starved variety of Uvig. "pyg- 

 mcea, but there is a remarkable diflference between them in the fineness and arrange- 

 ment of their pore-canals, for whilst Uvig. pygmsea has them nearly as fine and closely 

 set as Nodosarina, this form has a somewhat coarser poration, resembling in this respect 

 some of the Buliminfe. 



Loxostomum aculeatum Ehrenbg. is a biserial Uvigerina with a strong tendency 

 to become uniserial (= Heterostomella Rss.). If a form with its sides somewhat pro- 

 duced in angles and coarse spines — not uncommon on the chalkbottom, and repre- 

 sented by fig. 75 — is identic with Ehrenberg's form, it will be irapossible to establish any 

 specific distinction between our Uvig. Auheriana and this Loxostomum of Ehrenbeeg. 



Fig. 71 — 73 the smooth Uvig. Auberiana from the chalkooze; fig. 74 more mag- 

 nified. 



Fig. 75 — 75 b the Loxostomum form (= Heterostomella aculeata Park. and Jones). 



a) spinosa au t rugosa: 



Syn. Uvigerina Auberiana d'Oeb., 1839, Cuba p. 106, t. 2, figg. 23—24. 



» asperula, Orbignyana Czjz., 1847, Foss. for. Wien. Beck.; Haid. nat. Abh. 2. 1, p. 146, 



t. 13, figg. 14 — 17 (an forma praecedentis). 

 » » Ess., 1867, Steinsalzablag. Wieliczka; Wien. Ak. Sitz.-Ber. 1. 55, p. 93, t. 4, 



figg. 6—9. 



