14 PROCEEDINGS OF THE NATIONAL MUSEUM vol.72 



and coarsely perforate. Sutural lines depressed. Aperture situated 

 in a depression at the junction of the terminal chamber with the 

 preceding convolution, usually a simple crescentic slit, sometimes 

 furnished with a rim or a short neck as in T. echinata?'' 



The types are from the Kerimba Archipelago off Southeastern 

 Africa, but the authors also record it from off Tahiti. Brady's 

 Challenger material, according to Heron-Allen and Earland, is at 

 least partially of this species and they refer GTiallenger Report (pi. 

 96, fig. 12) to their species. 



EXPLANATION OF PLATES 



(In all figures a, dorsal view, 6, ventral view, and c, apertural view.) 



Plate 1 



Figs. 1 a-G. Siphonina reticulata (Czjzek), (After type figure of SipJionina 

 fimiriata Reuss.) 



2 a-G. Siphonina reticulata (Czjzek). (After type figure of Botalina 



reticulata Czjzek.) 



3 Or-G. Siphonina tubtilosa Cushman. (After H. B. Brady.) 



4 a^G. Siphonina iradyana, new species. (After H. B. Brady.) 



5 a^G. Siphonina tuiulosa Cushman. Specimen from Samoa. X65. 



6 a-G. Siphonina jacksonensis Cushman and Applin. Specimen from 



type locality, 4 miles east of Diboll, Tex. X65. 



7 a-G. Siphonina advena Cushman. From Lower Oligocene, Byram 



marl, Byram, Miss. X65. 



Plate 2 



Figs. 1 Or-c. Siphonina wilcoxensis, new species. From Nanafalia Bluff, Tom- 

 bigbee River, Ala. XIOO. 



2 a-G. Siphonina wilcoxensis, new species. From 2 miles south of Merid- 



ian, Lauderdale County, Miss. XIOO. 



3 a-G. Siph07iina tvilcoxensis, new species. From Tuscahoma Landing, 



Tombigbee River, Ala. XIOO. 



4 a-G.-Siphonina prima Plummer. From shallow ditch at road corner 



southeast of New Corsicana reservoir on the road to Mildred, 

 Navarro County, Tex. XIOO. 



5 a-G. Siphonina pulchra Cushman. Recent. Off Tortugas, Fla. X65. 



6 a^G. Siphonina australis, new species. Holotype. From Muddy Creek, 



Victoria, Australia. X65. 



