Z ALLAN HANCOCK ATLANTIC EXPEDITION REPORT 



Rico. As a result of these studies about 230 species have been recorded 

 for this general area, but, except for the brief report on Curagao, the 

 Bryozoa of southern Caribbean coastal shelf are unrecorded. 



The present account adds 14 species to those already known to occur 

 in the West Indian area and 7 of these appear to be new and are described 

 and figured. As only 23 species have hitherto been known from the 

 southern coast of the Caribbean Sea, the present work adds 84 to this 

 region and is further important in that a number of these are rare and 

 have been recorded elsewhere only once or twice. Two common Pacific 

 species have been added to the Atlantic fauna. It is well known that 

 many of the tropical species are circumtropical in distribution and may 

 be found almost anywhere in warmer waters. Thus 44 species of the 

 present list are known from the Pacific coast of the Americas, and most 

 of these have also been recorded from the Eastern Atlantic, Western 

 Pacific and Indian Oceans. 



The writer desires to express his thanks to the Allan Hancock Foun- 

 dation of The University of Southern California for financial assistance 

 during the progress of the work ; to Dr. Irene McCulloch and her staff of 

 assistants for aid in many ways, and to Mr. Anker Petersen, Staff Artist, 

 for his careful work in preparing the illustrations of new species. 



BRYOZOA Ehrenberg 1831 



EnTOPROGTA Nitsche 1869 



Family PedicelHnidae Johnston 1847 



Genus PEDICELLINA M. Sars 1835 



Pedicellina cernua (Pallas), 1771 



Osburn 1914: 212; 1940: 326. 



Widely distributed ; along the eastern coast of the Americas it has 

 been recorded at numerous places from Nova Scotia to Santos Bay, Brazil 

 (Marcus 1938: 5). Osburn has noted its occurrence in the West Indian 

 region at the Tortugas Islands and Porto Rico. 



The variations in the number of minute spines on the stalk and calyx 

 has led to the erection of several nominal varieties. In the present col- 

 lections some individuals have no spines, some have a few on the stalk, 

 but none have spines on the calyx. 



Distribution. — Station A30-39,^ Cubagua Island, shore, a few 

 colonies on Amathia stems. 



1 This study involves two station lists: A stations refer to the regular Atlantic 

 station list and At stations refer to the bottom sample station list. In this report 

 the word "Distribution" is limited to a summary of the stations involved in this 

 particular investigation. 



