1002.] NATURAL SCIENCES OF PHILADELPHIA. 259 



south, and extends from Godhavn to Cape Sabine, though few col- 

 lecting stations were made south of Cape York. Some thirty species 

 are comprised in this collection, mostly of forms well known from 

 more southern waters; but several of them have not been previously 

 recorded from North Greenland. None of the S2)ecies are new, but 

 it is noteworthy that several of the polynoids differ materially from 

 the more typical representatives of I heir species which occur on the 

 coasts of North America, of Norway, Scothand, etc. Although one 

 cannot safely draw general conclusions from the small amount of 

 material at hand, there seems to be a tendency for the eh'tra to 

 become rougher and more spinous. In the list of localities, the 

 numerals preceded by the letter 0. indicate the dredging stations of 

 this expedition. The collections of the Academy also include the 

 few Polychsela remaining of those brought back from southern 

 Greenland by Dr. Hayes in 1860-61, a list of which was published 

 by Stimpson in the Proceedings of the Academy of Natural Sciences 

 of Philadelphia for 1863. These also are enumerated in the fol- 

 lowing list. 



Gattyana cirrosa (Pallas) Mcintosh. 



The elytra are rougher than those figured by IMalmgren and 

 Mcintosh, the numerous papillse being rough, horny, and spinous 

 at the tip. The specimens from Cape York ai-e covered with the 

 "■ ochreous deposit " mentioned by Mcintosh, which appears to be 

 derived from the bottom soil. McCormick Bay, P. R. E. ; Barden 

 Bay, O. 45, 10-40 fath. ; Cape York, O. 34, 10 fath. 

 Gattyana amondseni (Malmg.) Mclutosh. 



McCormick Bay, Dr. Benjamin Sharp; Payer Harbor, O. 17, 

 16 fath. 

 Gattyana senta sp. nov. 



This species has the broad, thick-set form of Hannot hoe imbricata, 

 but is more depressed. Owing to the very spiny elytra and the 

 dense bundles of dorsal bristles it presents a remarkably shaggy 

 aspect. The type specimen is 22 mm. long, exclusive of the ceph- 

 alic and caudal appendages, and has a maximum width between 

 the tips of the longest setae of 8.5 mm., of which the body itself 

 forms about two-fifths. There are thirty -six setigerous somites. 

 As viewed from below the body, exclusive of the parapodia, in- 

 creases in breadth to X, from which it decreases very gj'aduallv to 



