﻿SIPUNCULID WORMS OF CALIFORNIA — FISHER 409 



color, bleached sepia. Another specimen, about the same length, has 

 the anal zone a warm browm, which is characteristic of mxost of the 

 young specimens with or without spines. The tentacles, already 

 voluminous, more obviously number four than they do in adults. 

 Each tentacle has two or three branchlets bearing the ultimate 

 tentacules. Another specimen, only slightly longer, has 18 hooks in 

 about 5 spaced groups. A 24-mm. specimen has more than 50 hooks. 



In the above lot there are 12 specimens, measuring from 9 to 18 mm., 

 which have no hooks, but have four tentacles and body markings the 

 same as the young with hooks. 



Type. — Originally ui the ATuseurn of Comparative Zoology but no 

 longer ui existence. 



Type locality. — Laguna Beach, Orange Comity, Calif. 



Distribution. — From Coos Bay, Oreg., to San Quintin, Baja Cali- 

 fornia. 



Specimens examined. — As follows: 



Coos Bay (North Bay), Oreg., eelgrass root.s, July 26, 1949, D. L. Reish, 2 speci- 

 mens. 



Crescent City, Calif., June 11, 1913, W. F. Thompson, 2 specimens (body cavity 

 full of eggs). 



Bodega Head, Calif., in sand under rock, Aug. 4, 1948, D. M. Wootton, 1 specimen. 



Tomales Point, Marin County, Calif., 1939, E. F. Ricketts, 5 specimens. 



Monterey Bay, Calif, (vicinity of Pacific Grove), intertidal, granitic rocks, 

 numerous specimens. 



Santa Rosa Island, Calif., southeast Sandy Point, in rock, January 27, 1949, 

 D. M. Wootton, 1 specimen. 



San Clemente Island, Calif., June 20, 1896, H. B. Torrey, 3 specimens. 



Ensenada and Boca del Playa, Baja California, E. F. Ricketts, 7 specimens. 



San Quiutfn, Baja California, March 1949, Patrick Wells, 3 small specimens. 



Remarks. — In the Monterey Bay region this species spawns during 

 the latter part of February and early March at the same time as 

 D. dyscritum. 



This is probably the species upon which Sato (1930, p. 27) bases his 

 California record of D. hlandum, which is a comparatively small 

 animal (upward of 50 mm.). The tentacles (Sato, 1930, fig. 10, p. 24) 

 are much simpler than those of pyroides. The four primary trunks 

 divide at once to form eight subequal tentacles. The ultimate 

 tentacules are arranged pinnately along both sides of each of these 

 arms in a single series. Sometimes there is an extra smaller branch 

 between two principal branches. Such tentacles are not dendritic. 

 The fixing muscles have a different arrangement: F^ is where F^ is in 

 pyroides; F^ seems to be attached to the intestine or the end of the 

 rectum at about the position of coecum, which is lacking in hlandum, 

 F^ is about the same as in pyroides. 



