CIRRATULIDAE 



157 



Description. The average measurement is about 20 mm. by 2 mm. at the widest 

 part: there are 80-90 chaetigers. The body is tapered at both ends, suddenly at the 

 anterior end and gradually at the posterior. It is at its broadest from the loth to the 

 40th chaetiger. In spirit all pigment has disappeared. The prostomium (Fig. 61) is 

 shorter and blunter than that figured for H. caput-esocis (Fauvel, loc. cit. fig. /). Instead 

 of a pair of round eye spots, there is a row of small eye spots interrupted in the middle 

 line as in Cirrotiihis cirratiis. 



T2mm. 



Fig. 61. Heterocirrus capitt-csocis, var. capemis. Anterior end. 



The buccal and the following achaetous segments are not clearly distinguished. Just 

 in front of the ist chaetiger is a pair of long coiled palps, and a little behind and below 

 these a pair of gills. Most of the gills are lost, and I can find none behind the 15th 

 chaetiger ; further back they are either absent or broken ofi". 



There are dorsal and ventral capillary bristles in all the feet, and from about the 

 15th neuropodium and 20th notopodium there are also simple unidentate hooks. I can 

 see no ventral folds round the anus. 



Remarks. This form is close to H. capiit-esocis, but differs from it in the shape of the 

 head and eyes, and in the presence of notopodial hooks behind the 20th chaetiger 

 instead of in the terminal feet only. 



Genus Tharj^, Webster and Benedict 

 Tharyx epitoca, n.sp. 



St. 181. 12. iii. 27. SchoUaert Channel, Palmer Archipelago. 64° 20' 00" S, 63° 01' 00" W. 

 160-335 m. Gear OTL. Bottom: mud. One specimen. Gear N 4-T. One specimen. 



St. 190. 24. iii. 27. Bismarck Strait, Palmer Archipelago. 64° 56' 00" S, 65° 35' 00" W. 93-126 m. 

 Gear DLH. Bottom: stones, mud and rock. One specimen. 



Description. Two epitocous females, swollen with eggs. The largest measures 

 27 mm. by 3 mm. at the widest part, for about 50 chaetigers. The body is fusiform, 



