60 GOES, RETICULARIAN RHIZOPODA OF THE CARIBBEAN SEA. 



TTvigerina cochlearis, Brunnensis, Parkeri KARR., 1877, Hoohqu. Wasserl.; Osterr. geol. Reichsanst. 



Abh. 9, p. 385, t. 16, figg. 4850. 



pygmsea var. PARK, and JONES, 1865, Northatl. and Arct. Oceans; Phil. Trans. 155. 1, p. 



363, t. 13, figg. 5357. 



b. ft) Sagrinseformis: 



Sagr. pulchella D'ORB., 1839, Cuba p. 150, t. 1, ligg. 23 24; 1846, For. Bass. tert. Vienne 



p. 252, t. 21, figg. 48 49 (textulariseformis). 



c) angulosa: 



Uvigerina angulosa WILLIAMS., 1858, Brit. rec. forf. p. 67, fig. 140. 



pygmsea var. angulosa PARK, and JONES, 1865, North. Atl. and arct. Oc.; Phil. 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. 

 cristata MARSS., 1876, Rug. Schreibekr.; Greifsw. Nat. Verein. Mitth. 1877 78, p. 



150, t. 3, fig. 20. 



Uvigerina Auberiana D'ORB. 



Tab. IV, figg. 7175. 



Our form is often more smooth and more slender than D'ORBIGNY'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 Uvig. proboscidea SCWHAG. 

 and Uvig. farinosa HKEN.; probably also Uvig. canariensis D'ORB. 



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

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

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

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

 some of the Buliminse. 



Loxostomurn 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 impossible to establish any 

 specific distinction between our Uvig. Auberiana and this Loxostomurn of EHRENBERG. 



Fig. 7173 the smooth Uvig. Auberiana from the chalkooze; fig. 74 more mag- 

 nified. 



Fig. 75 75 b the Loxostomurn form (= Heterostomella aculeata PARK, and JONES). 



a) spinosa aut rugosa: 



Syn. Uvigerina Auberiana D'ORB., 1839, Cuba p. 106, t. 2, figg. 2324. 



asperula, Orbignyana GZJZ., 1847, Foss. for. Wien. Beck.; Haid. nat. Abh. 2. i, p. 146, 



t. 13, figg. 14 17 (an forma prsecedentis). 



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



?. 69. 



