POLYCH^TA. BEXHAM. ISl! 



The notopodia and neuropodia are distinct lobes, except 

 in the anterior segments, ^here they are very small. Each 

 lobe is a short cyhndrical structure A\ith definite hps, and 

 on the anterior face is a small round-topj}ed papilla. There 

 is no ventral cirrus (PI. xlviii., fig. 36.) 



Parapodial gills are present after the tenth segment, 

 except on the last three ; each has the usual fonn — simple, 

 tongue-shaped and grooved. The first and second parapodia 

 are very inconspicuous and carry but few chsetse : I counted 

 three in the former and five or six in the latter. In the 

 remainder they are numerous, all are alike, capilliform, of 

 a shiny brownish tint. 



The last three segments of the body decrease in diameter 

 successively and abruptly, so that from the side they appear 

 to be telescoped into one another, with a projecting posterior 

 angle, where the chsetse arise ; these are very long on thes-e 

 segments, and reach beyond the anal tentacles. 



The body may, then, be analysed as follows : — Total, 32 

 segments, of which the first ten and the last three are Avithoiit 

 gills, so that there are 19 gill-bearing segments. 



Remarks. — It presents a good deal of similarity to O. 

 negleda, Schneider, as described by St. Joseph, ^ but he 

 gives eighteen anal tentacles in addition to the ventral lobes, 

 and the number of segments is one less. 



Loc. — South of St. Francis Island, South Austraha, 3o 

 fathoms (with Thalanessn ocvlafa and Noiomastits dsigi). 



Family MALDANID.^. 

 Genus Asychis, Kinherg. 



ASYCHIS VICTORI.^, SI). IIOV. 



(Plate xlviii., figs. 38-45.) 



Praxilla abyssorum, MTntosh, Chall. Rep., Zool., xii., 

 1885, p. 408. 



A fragment, consisting of the head and seven chsetigerous 

 segments, measures 53 mm. in length by 4 mm. in diameter. 



The prostomium slopes downwards to the ventral surface, 

 is convex dorsally with a broad median flat ridge or platform 

 occupying about half its width (PI. xhnii., fig. 38) ; this is 

 transversely striated and bounded on each side by a deep 



1. St. Joseph— Ann. Sci. Nat., Zool., (8), v., 1898, p. 369. 



