326 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 6 



From the records this species has a wide distribution, both fossil and 

 Recent. Our figures show various stages of development. 



Station: 52. 



Distribution. — The single station record for this species in the Han- 

 cock collections was a sample collected at Conway Bay, Indefatigable 

 Island in 1932, at low tide. 



Genus SARAGENARIA Def ranee, 1824 



Saracenaria angularis Natland 



Plate 42, Figs. 8-12 



Saracenaria angularis Natland, Bull. Scripps Instit. Oceanography, 

 Tech. Ser., vol. 3, No. 10, 1933, table; vol. 4, No. 5, 1938, p. 143, pi. 5, 

 figs. 1,2. 



"Test elongate, chambers rapidly increasing in size, triangular in cross 

 section, margins carinate, with a wide keel of clear shell material ; sutures 

 distinct, depressed slightly, obliquely set; walls smooth, thin, almost 

 translucent; aperture radiate, at the apex of the chamber. Length 0.77 

 mm. ; breadth 0.55 mm. ; thickness 0.55 mm." 



The types of this species are from off the southern coast of California. 

 It has probably been referred to as "5. italica Defrance" in records from 

 the upper Pliocene and Pleistocene of the Los Angeles Basin. It is very 

 common and typical in our present material. 



Stations: 1005, 1007, 1060, 1068, 1072, 1075, 1076, 1078, 1081, 

 1082, 1106, 1112, 1118, 1131, 1139, 1152, 1156, 1158, 1160, 1161, 1165, 

 1168, 1171, 1175, 1177, 1179, 1180, 1184, 1186, 1201, 1203, 1204, 1205, 

 1218, 1221, 1222, 1231, 1238, 1240, 1246, 207, 226, 249, 283, 2008, 

 2010, 2012, 2016, 2017, 2023, 2024, 2037, 2051, 2063, 2064, 2065, 2067, 

 2093, 2096, 2097, 2098, 2136, 2137, 2144, 2145, 2149, 2156, 2157, 2159, 

 2160, 2161, 2162, 2163, 2164, 2165, 2166, 2168, 2169, 340, 412, 416, 

 473, 506, 517, 540, 543, 547, 553, 558, 653, and 655. 



Distribution. — Stations 1005 through 1246 are off the Channel Is- 

 lands. The depth range for these records is 26 to 160 fms. with an average 

 of 50 fms. Stations 207 through 2169 are off Mexico and in the Gulf of 

 California with a depth range of 10 to 138 fms., the average being 30 

 fms. Stations 340 through 558 place this species at Panama, off South 

 America, and in the Galapagos Islands in 20 to 116 fms., with the 

 average being 67 fms. Stations 653 and 655 are off Kobe and Shanghai 

 in 45 and 90 fms. respectively. The largest number of specimens was 

 found in the bottom samples at the Outer Gorda Bank, Mexico. 



