﻿402 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



GOLFINGIA PROCEBA (Mobius) 



Phascolosoma procerum Mobius, 1875, p. 157, pi. 3, figs. 1-5. — Theel, 1905, p. 70 

 pi. 2, figs. 19-26; pi. 3, figs. 27-28; pi. 12, fig. 190. 



Diagnosis. — Small, slender, grayish species with very long, slender 

 introvert and crown of 28 to 40 delicate tentacles in six double rows; 

 anus situated not far from posterior end of body, which often ends in 

 a slender projection; two retractors arising near posterior end of body; 

 posterior part of contractile vessel with numerous simple or bifid villi; 

 nephridia opening in front of anus; one fixing muscle anchoring esopha- 

 gus to body wall in front of anus; length 40 mm. ; anus to posterior end 

 of body 7 mm.; diameter of trunk near posterior end 2 mm. 



Description. — -The small size and condition of material precludes a 

 full description. Reference should be made to Th^el's account (1905, 

 p. 70) and Liljevall's accompanying figm-es. I have had to depend 

 upon Th^el for the number of tentacles. There are possibly eight 

 groups in my specimens. The skin is beset with minute papillae 

 (Th4el, fig. 24) capping translucent convexities. The villi are defi- 

 nitel}'' confined to the posterior part of the contractile vessel as in the 

 specimens Th^el studied. Theel does not mention the fixing muscle, 

 which is attached to the esophagus farther forward than F^ in Golfingia 

 macginitiei, and to the body wall in front of the anus, not posterior to 

 it. I am not able to find a coecum but Wesenberg-Lund (1939, p. 20) 

 verified its presence in Danish specimens. 



Type locality. — Bass Rock, Firth of Forth, Scotland. 



Distribution. — North Sea to Danish waters and west coast of 

 Sweden, shallow; Irish waters; oft' Marthas Vinyard, Mass., 100 to 

 266 fathoms (see footnote 15). 

 Specimens examined. — As follows: 



Albatross station 4548, Monterey Bay, Calif., 46 to 54 fathoms, coarse sand, 

 shells, rocks, 6 specimens. 



Remarks. — It is possible, of course, that these specimens represent 

 a distinct form or race of the North Sea procera. More material is 

 needed for a conclusion to be reached. 



GOLFINGIA MACGINITIEI, new species 



Plate 26 



Diagnosis. — Introvert nearly 3 times trimk length; tentacles very 

 numerous in 16 double series; body wall opaque; sldn smooth but 

 beset with very numerous minute papillae without differentiation in 

 anal region; retractors attached at beginning of posterior third of 

 trunk; 2 fixing muscles anchoring esophagus dorsally; more than 60 

 coils in intestinal spire; especially characteristic are dichotomously 

 branched Polian villi in great numbers. 



