36 ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



Microporella ciliata personata (Busk) 



Osburn 1940: 433 ("under M. ciliata). 



A widely distributed variety of ciliata in which the peristome rises 

 high proximal to the aperture, between it and the ascopore. The writer 

 has observed it at the Tortugas Islands, Curagao and Porto Rico. 



Distribution. — Stations A14-39, 2 miles SW of Cape la Vela, Colom- 

 bia at 22 fms, and At502, 1 mile off Aruba Island at 71 fms. 



Family Smittinidae Levinsen 1909 



Genus SMITTINA Norman 1903 



Smittina trispinosa (Johnston), 1838 



Smitt 1873: 59 (Escharella jacotini), and p. 60 (E. spathulata). Osburn 

 1914:208; 1927: 129 (S. t. van spatidosa, by errorj; 1940:434 (S. 

 trispinosa and vars. spathulata Smitt, munita Hincks, protecta Thornely, 

 and nitida VerrilU. Canu and Bassler 1928: 114 (S. spathulata). 



This species is found around the world and from the Arctic regions 

 to tropical seas and shows an almost infinite amount of variation. Many 

 varieties have been named, and doubtless a number of specific names will 

 be found to have only varietal value. In the region of the Gulf of Mexico 

 and the Caribbean Sea it has been recorded (with several of its vari- 

 ations) from Florida, Porto Rico, east of Yucatan and at Curagao 

 Island. In the present collection is a colony which is like the var. spathu- 

 lata in most respects, but has a few slightly elevated triangular avicularia 

 among the more usual spatulate ones. 



Distribution.— ?,t?it\om A30-39, At502, At503, At526, At528, and 

 At529. These stations place the locations at Cubagua and Tortuga 

 Islands and the Gulf of Venezuela at shore to 41 fms. 



Smittina trispinosa munita Hincks, 1884 



Osburn 1940:436. 



This is a rather well-marked variety in which the peristome is high 

 and folded into a secondary sinus at the top. The avicularium is charac- 

 teristically placed on the front touching the peristome and with its long 

 pointed mandible directed toward the proximal end of the zooecium. 

 Recorded by Osburn from Porto Rico and by Marcus (1937: 108) from 

 Brazil. 



Distribution. — Stations AlO-39, outside Caledonia Bay, Panama at 

 28 fms, and A30-39, Cubagua Island at shore. 



