272 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 10 



Ramex callfornlensis, new species 

 Plate 21, Fig. 29 ; Plate 22, Figs. 30-32 



Several individuals come from Tomales Point, ocean side, some from 

 Dillon Beach along the rocky shore, and numerous others w^ere taken at 

 Caspar and Moss Beach, San Mateo County, California. Total length 

 of an ovigerous individual is about 15 mm. The body tapers posteriorly, 

 is more or less terete, or only slightly coiled (preserved). The segments 

 consist of 13 thoracic and about 21 abdominal setigers, or a total of 34. 

 The prostomium is broadly rounded at its anterior margin but not pro- 

 longed. Tentacles are numerous, slender, grooved, only slightly coiled 

 and twisted in retraction ; they are of varying lengths, the posteriormost 

 and lateralmost much the shortest. 



The peristomial ring is easily made out by laying aside the single 

 pair of branchiae. It is unadorned save for several rows of tiny dark eye- 

 spots, more or less limited to its dorsal and dorsolateral portions. The 

 first few segments increase rapidly in circumference. The branchial seg- 

 ment is a simple ring with the branchiae attached in a straight line on the 

 dorsal side. The 2 of a pair are approximately similar, but the right one 

 (in the type specimen) is slightly smaller than the other; the smaller one 

 has 7 distal ends (pi. 21, fig. 29), the larger has 10, but they are similar 

 in other respects. 



The first parapodium is represented by a papilla, lacking setae, im- 

 mediately behind the branchial segment. The next segment is provided 

 with a setal fascicle, resembling those more posterior. Thoracic setae are 

 continued posteriorly through only 13 segments. They are long, pointed, 

 with entire margin, and narrowly bilimbate (pi. 22, fig. 32). Ventral 

 uncini are present fi'om the second setiger, continued thus through the 

 sixth setiger; thereafter they occur in alternating series. They are avicular, 

 with broad base, a single large tooth and 2 smaller rows of teeth distally 

 (pi. 22, figs. 30, 31). Abdominal uncini resemble those in the thorax. 



Color in life is pale red. The tube is coarse, with chitinized base, 

 covered externally with algal and shell fragments. 



Holotype. — ^AHF no. 64. 



Type locality. — Tomales Point, Marin County, California. 



Distribution. — Central California, intertidal. 



Pista elongata Moore 



Moore, 1909, pp. 270-272, pi. 9, figs. 45-47; MacGinitie, 1935, pp. 695- 

 696, fig. 12. 

 At Tomales Point, ocean side, this occurs in rocky habitats. The 

 characteristic spongelike top of the tube, and the long-branched bran- 

 chiae clearly characterize this species. Length is 100 mm or over. 



