NO. 6 CUSHMAN, MCCULLOCH : LAGENIDAE 317 



Dentalina cf. mucronata (Neugeboren) 

 Plate 41, Fig. 5 



Variable specimens one of which is figured may be placed under this 

 species with some question until a larger series is available. 



Stations: 1129, 1207, 406, 412, 413, 414, 416, 432, 461, 488, 553, 

 555, 587, and 667. 



Distribution. — Stations 1129 and 1207 are off the Channel Islands, 

 off Pt. Fermin in 18 fms. and off Catalina in 600 fms. Stations 406 to 

 488 are located in the Galapagos Islands with a depth range of 35-111 

 fms. The average is 90 fms. Three stations off Colombia, South America, 

 553-587, have an average depth of 62 fms. One record at Port of Spain 

 shows a depth of 45 fms. The best specimens came from off Colombia 

 and the Galapagos Islands. 



Dentalina cf. calomorpha (Reuss) 

 Plate 41, Fig. 6 



Rare specimens similar to that figured may be referred to this species 

 with some question. 



Stations: A-2, 1006, 1068, 1231, 265, 2017, and 514. 



Distribution. — Station A-2 is Wrangell, Alaska in 2 fms. Stations 

 1006, 1068, and 1231 are San Nicolas, San Miguel and Santa Rosa 

 Islands in 63, 39, and 45 fms. respectively. Stations 265 and 2017 are 

 in the Gulf of California with 16 and 20 fms. Station 514, off Colombia, 

 South America, is 16 fms. The number was greater at Wrangell, Alaska, 

 than elsewhere. 



Dentalina cf. jugosa Williamson 

 Plate 41, Fig. 17 



A few specimens in the Hancock collection are somewhat like forms 

 which have been referred to Williamson's species. 



Stations: 306, 412, 415, 461, 468, and 606. 



Distribution. — Station 306 is at Cocos Island in 17 fms. Stations 412- 

 468 are in the waters of Galapagos Islands with a depth range 17 to 111 

 fms., the average being 57 fms. Station 606 at Monaco is from 30 fms. 

 The best material came from off Albemarle Island. 



Dentalina ? sp. 

 Plate 41, Fig. 18 



The figured specimen somewhat suggests a megalospheric form of a 

 Marginulina but not enough specimens are available to warrant placing 

 it definitely. 



