NO. 5 CUSHMAN AND MCCULLOCH: SOME BULIMINIDAE 277 



This species differs from H. hancocki, new species, in having its last 

 few chambers reduced in size and in its almost complete covering of orna- 

 mentation. 



It is common here and shows its considerable range of variation in 

 ornamentation. It occurs less frequently at the following additional sta- 

 tions: 112, 503, 505, 512, 540, 583, 1096. 



Distribution. — The type locality is Station 513, off the coast of Co- 

 lombia, 0° 39' 20" N., 80° 15' 30'' W. in 58 fms. Other records include 

 the coast off Redondo Beach, Catalina Island, the coast of Colombia, and 

 off the coast of Ecuador. 



Genus ANGULOGERINA Cushman, 1927 



Angulogerina albatrossi Cushman 



Plate 35, Fig. 3 



Angulogerina albatrossi Cushman, Contr. Cushman Lab. Foram. 

 Res., vol. 8, 1932, p. 45, pi. 6, figs. 11, 12. 



Test elongate, subfusiform and irregularly triangidar throughout in 

 the microspheric form, subcylindrical and irregularly inflated in the 

 megalospheric form, becoming loosely coiled toward the apertural end; 

 chambers few, slightly inflated, those of the microspheric form and the 

 last-formed ones of the megalospheric form triangular in section, some- 

 times with concave sides; sutures distinct, deeply depressed; wall coarsely 

 punctate, generally smooth, although on the microspheric form the early 

 part sometimes shows traces of low costae and the initial end may have 

 very slight spinose projections ; aperture large, at the end of a distinct 

 neck, surrounded by a thickened phialine lip. 



Length 0.90-1.25 mm; diameter 0.30-0.60 mm. 



The megalospheric forms are identical with the types which were 

 from Albatross H 1805, off the west coast of Mexico, Lat. 18° 33' 30" 

 N., Long. 114° 44' 00" W., 1732 fms. Microspheric forms have not 

 been figured previously and are quite different in shape, being much 

 broader in the middle of the test, and having a pointed rather than 

 rounded initial end. Three specimens are illustrated to show these varia- 

 tions. Only the microspheric foiTns, as would be expected, show faint 

 traces of ornamentation and seem almost to grade into the var. ornata. 



A few specimens from the following stations: 223, 420, 432, 438, 

 444, 461, 474, 1189, 2084, are placed in this species. 



Distribution. — Analysis of these station records shows a range from 

 -Cortes Bank in 51 fms southward to Hood Island in 175 fms. 



