﻿436 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



spu*al. They are not simple but are dichotomously branched three 

 or four tunes so that they appear to arise from the vessel in clusters, 

 very much as in Golfingia macginitiei. 



The nephridia are very long and are attached except for a short 

 terminal portion. They open between the thnd and fourth muscle 

 bundles. The nerve cord is loosely attached by its nerves. The eye 

 spots are very inconspicuous (not "deutliche" as Selenka describes 

 them). The specimen from Espii'itu Santo Island contained many 

 apparently fully formed elliptical eggs 0.1 by 0.12 mm. The shell is 

 thick (0.05 mm.) and by transmitted light appears to be cross striated 

 (pi. 39, fig. 8). 



Type locality. — Puerto Cabello, Venezuela. 



Distribution. — Florida (Key West, Loggerhead Key); West Indies 

 (Cuba, Porto Rico, St. Thomas, St. CroLx, Barbados, Jamaica); 

 Colombia; Venezuela; Dutch Guiana; Brazil. In the Pacific: 

 Gulf of California; Costa Rica; Panama; Chili; Hawaii (Halape); 

 Riukiu Islands (Amami Oshima, Naha, Itoman, Tinensaki). 



Specimens examined. — Five specimens: 



Point Lobos, Espiritu Santo Island, Baja California, under boulders, March 20, 



1940, E. F. Ricketts, 1 specimen. 

 East of La Paz, interstices of dead coral, E. F. Ricketts, 1 specimen. 

 Bay of Panama, F. H. Bradley, 1866, 3 specimens. 



Remarks. — On account of its more stm-dy habit, short introvert, and 

 conspicuous crown of tentacles this species superficially resembles a 

 Dendrostomum and is unlike any other Phascolosoma from the eastern 

 Pacific. 



LITERATURE CITED 



Baird, William. 



1868. Monograph of the species of worms belonging to the subclass Gephyrea. 

 . . . Proc. Zool. Soc. London, 1868, pp. 76-114, pis. 9-11. 

 Benham, W. B. 



1922. Gephyrea iuermia. Australasian Antarctic Expedition, 1911-14, 

 under the leadership of Sir Douglas Mawson. Scientific Reports, 

 series C. — Zoology and botany, vol. 6, pt. 5, 23 pp. 1 pi. 

 Blainvillb, Henri Marie Ducratat de. 



1827. Dictionnaire des sciences naturelles. Vers, vol. 49. 

 Chamberlin, Ralph Vary. 



1919. Notes on the sipunculids of Laguna Beach. Pomona Coll. Journ. 



Ent. and Zool., pp. 30-31. 



1920. The Gephyrea collected by the Canadian Arctic Expedition, 1913-18. 



Report of the Canadian Arctic Expedition, vol. 9, pt. D, 21 pp., 1 pi. 

 Collin, Anton. 



1892. Gephyreen gesammelt von Herrn Stabsarzt Dr. Sander auf der Reise 



S. M. S. Prinz Adalbert. Arch. Naturg., Jahrg. 58, vol. 1, pp. 



177-182, pi. 11. 

 1901. Die Gephyreen der deutschen Expedition S. M. S. Gazelle. Arch. 



Naturg., Jahrg. 67, Festschr. Ed. von Martens Beiheft, pp. 299-306. 



