FISHERY BULLETIN: VOL. 70, NO. 2 



accessory teeth each; rostra extending beyond 

 bases. With caudal appendix? 



Material studied: Holotype, from Port Orch- 

 ard, Wash. MCZ 1933. 



Near Friday Harbor, Wash., lat 48°31.7'N, 

 long 122°58.0'W, at the 0-ft level, in shell gravel, 

 6 July 1953. Collected and identified as C. in- 

 fundihuUformis by R. I. Smith. FHL 1700, 1 

 specimen. Unpublished record. 



From same site, presumably intertidal, in fine 

 gravel, 10 July 1968. Collected by S. Heller. 

 USNM 43637, 1 specimen. Unpublished record. 



Redescription: The holotype is now very 

 poorly preserved; it apparently had been allowed 

 to become dry. The diagnostic characters, i.e., 

 the position of the setae on the first setiger, the 

 form of the spatulate setae (in one notopodium) , 

 and the abdominal uncini (Figure 2c) can still 

 be recognized; the collar has been depicted by 

 Johnson (1901, Plate 18, Figure 186). Accord- 

 ing to Johnson, the trunk had 75 setigers and was 

 87 mm long. 



The following description is based on the two 

 animals from near Friday Harbor which are 

 complete, fixed outside their tubes, and well pre- 

 served. One specimen (USNM) has 8 thoracic 

 and almost 70 abdominal setigers. The length 

 of the branchial crown is approximately 10 mm, 

 that of the trunk roughly 60 mm, and the greatest 

 width is about 3 mm. The other animal (FHL) 

 has approximately 60 abdominal setigers, its 

 trunk length is about 60 mm, the greatest width 

 almost 5 mm, and the branchial crown approach- 

 es 15 mm in length. 



In the preserved material the branchial crown 

 forms a funnel with reflexed upper margin, as 

 common in the genus. The basis of the crown 

 is hidden by the collar (Figure 2d). The num- 

 ber of radioles is 20 pairs (USNM) and 26 pairs 

 (FHL). They are united by a palmate mem- 

 brane for about four-fifths of their length. The 

 tips of the radioles extend beyond the origin of 

 the distal pinnules; they are short and broad, 

 tapering at the ends (Figure 2e) . Ventrally the 

 tips are slimmer, dorsally a little wider than 

 shown. Many pinnules reach almost to the ends 

 of the radioles. As nude filaments were not 



found, they must be very short. The palps are 

 small triangular processes. 



The collar is slightly oblique, being a little 

 longer ventrally than dorsally. It extends dor- 

 sally to the intrasegmental furrow of the second 

 setiger ( Figure 2f ) . Consequently, the posterior 

 border of the first setiger does not end in the 

 fecal groove. Ventrally, the first (buccal) seg- 

 ment is not clearly set off from the collar. Ven- 

 tral shields are not present, and the entire epi- 

 dermis is glandularized. Setigers in the thorax 

 and abdomen are biannulate. The intrasegmen- 

 tal division of the first setiger is poorly discern- 

 ible and has not been drawn in Figure 2g. The 

 dorsal pattern of the inter- and intrasegmental 

 borders in the thorax is shown in Figure 2f. 

 The pygidium is pointed. A damaged filiform 

 appendage was seen in one specimen (USNM). 

 It appears to be similar to the caudal appendage 

 of C. filicaudata Southern, It is absent in the 

 other animal (FHL). 



The first setiger has bundles of a few short 

 setae which insert at right angles to the noto- 

 setae of the following segments but on the same 

 level (Figure 2d). Each of the remaining tho- 

 racic notopodia has almost 2 doz of upper limbate 

 setae in two sizes and below an anterior series 

 of bayonet-type setae (Figure 2h) with shafts 

 almost as thick as the posterior series of spat- 

 ulate setae; the bayonet-type setae taper abrupt- 

 ly at about the level of the body surface. The 

 spatulate setae (Figure 2i), 11/? to 2 doz per 

 parapodium, are without pointed tips but some 

 have very tiny hairs instead. The distal end of 

 such a seta can appear as having a dimple. These 

 spatulate setae are present also in the holotype, 

 but were overlooked by Johnson (1901). 



About 3 doz of neuropodial hooks (Figure 2j) 

 are arranged in irregular double rows in most 

 thoracic neuropodia. The uppermost half dozen 

 or so are in single rows. The abdominal uncini 

 (Figure 2k) are uniform in shape anteriorly 

 and posteriorly. When seen from the side, they 

 have three or four large coarse accessory teeth 

 arranged in three or four columns. The rostra 

 extend beyond the bases. Two dozen uncini are 

 present even in the 50th to 60th setigers. 



Some irregular orange-red speckles remain on 

 the collar and anterior segments of the holotype 



468 



