78 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



BULIMINA PYRULA d'Orbigny. 



Bulimina pyrula d'Orbigny, For. Foss. Vienne, 1846, p. 184, pi. 11, figs. 9, 

 10.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 399, pi. 50, 

 figs. 7-10. 



Description. — Test ovate in front view, broadest usually near the 

 base, nearly circular in end view, the apex rounded; visible chambers 



FlG. 12(5.— I5ULIMINA PYRULA. X 1)0. O, SIDE VIEW, b, VIEW SHOWING APERTURE; C, END VIEW. 



few, very little inflated; sutures flush with the surface or veiy slightly 

 depressed; wall smooth; aperture short and broad with a broad plate- 

 like tooth partially closing the opening; color white. 



Length 0.50-0.85 mm. 



Distribution. — Strangely enough all the material which I have 

 selected as belonging to this form has come from the coast of Japan, 

 in from 134 to 437 fathoms. 



This species has fewer visible chambers with a 

 broader and shorter aperture than the preceding. 

 The details of the aperture are shown in the 

 enlarged figure. 



BULIMINA PYRULA d'Orbigny, var. SPINESCENS H. B. Brady. 



Bulimina pyrula d'Orbigny, var. spinescens H. B. 

 Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1S84, 

 p. 400, pi. 50, figs. 11, 12. 



Description. — Similar to the typical form of 

 the species but with the broad apical end of the 

 test beset with short spines. 



Distribution. — Specimens were found at Alba- 

 tross station D4972, in 440 fathoms, off Japan. 

 All have the same spinose apex. 



The specimens figured here are much more elongate and of some- 

 what different form from those figured by Brady, but they have a 

 similar spinose apex. 



Fig. 127.— Bulimina py- 

 rula. x 75. Details 



OF THE APERTURE. 



