258 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



throughout, initial end bluntly pointed, slightly lobulated; chambers 

 slightly inflated, of about equal size except the first-formed ones ; sutures 

 distinct, deeply incised, curved ; wall thin, finely hispid, ornamented with 

 numerous, low, narrow, rather widely spaced costae, and very fine 

 spines, usually both being present, but sometimes only spines; aperture 

 circular, at the end of a short neck, surrounded by a narrow, phialine lip. 



Length 0.60-0.80 mm; diameter 0.22-0.28 mm. 



Holotype (AHF no. 55) from Station 82, where it occurs abundantly. 



This species differs from U. senticosa Cushman in its slenderer form 

 and the greater development of costae. It closely resembles U. juncea 

 Cushman and Todd from the Pliocene of Timms Point, Calif., but 

 differs in its larger, stouter test and more strongly developed ornamenta- 

 tion. It also resembles U. pigmea d'Orbigny from the Pliocene of Italy 

 but differs in its much less prominent costae. Specimens have been recorded 

 from Pliocene ? material from the Aleutian Islands. 



Specimens were found rarely to abundantly at numerous stations in 

 the Hancock collections as follows: 73, 80, 82, 144, 517, 1041, 1068, 

 1070, 1071, 1082, 1096, 1101, 1110, 1118, 1122, 1125, 1127, 1129, 

 1135, 1143, 1144, U46, 1147, 1148, 1157, 1158, 1159, 1162, 1163, 

 1164, 1165, 1168, 1174, 1176, 1179, 1180, 1181, 1182, 1184, 1186, 

 1190, 1196, 1198, 1199, 1200, 1201, 1203, 1204, 1205, 1218, 1219, 

 1223, 1224, 1225, 1226, 1227, 1228, 1229, 1230, 1233, 1234, 1238, 

 1239, 1242, 1244, 1245, 1246, 2014, 2087, 2107, 2110, 2154, 2162, 

 2169. 



Distribution. — The type locality, Station 82, is off Long Point, Cata- 

 lina, in 147 fms. The stations listed thus far occur, on the whole, off the 

 Channel Islands and in the Gulf of California at depths ranging from 

 10 to 212 fms. 



Uvigerina excellens Todd, new species 

 Plate 33, Fig. 2 



Uvigerina sp. Cushman and Gray, Special Publ. No. 19, Cushman 

 Lab. Foram. Res., 1946, p. 37, pi. 6, fig. 15. 



Test large, elongate, compact, greatest breadth about middle of test, 

 periphery lobulated; chambers distinct, inflated, rapidly increasing in 

 size; sutures deeply incised, curved; wall thin, translucent, ornamented 

 by numerous, low, regular, sharp, longitudinal costae, about 30 on the 

 circumference of the test, not continuous across the sutures, occasionally 



