Smith and Hurler — St. George's Banks Dredgings. 47 



])ortion is often extended into a short proboscis, witli the montli at 

 the end ; below the tentacles there is sometimes a dilation, but this is 

 without special spines or granules, and like the rest of the retractile 

 portion in texture. The posterior end of the body is bluntly rounded, 

 and the skin is transversely wrinkled and rough, and covered with 

 small, round, somewhat raised verrucas or suckers, to which dirt ad- 

 heres, and at the end nearly always bears from 3 to 8 small, but 

 prominent, peculiar bodies, having a slender pedicle and a clavate or 

 globular head ; their nature is doubtful. (They may be sense-organs, 

 but should be examined on living s])ecimens.) At about the poste- 

 rior third of the proper body is an irregular zone of numerous, dark 

 brown, hard chitiuous hooks, arranged in several rows, broad triangu- 

 lar in form, with acute points directed forward ; among the hooks are 

 also a few suckers ; the middle region is covered with small, round, 

 slightly raised suckers, which become much more prominent and 

 crowded at the anterior end toward the base of the retractile portion, 

 and have here the form of small, subconical, elevated warts, to which 

 dii't usually adheres firmly ; the retractile portion is covered through- 

 out with minute conical verruca? or paj^illte, most prominent toward 

 the base. 



In many respects P. cmmentarium agrees very closely with this, 

 but it has the posterior end much smoother, and with less conspicu- 

 ous suckers ; the hooks are not so numerous, less acute, and lighter 

 colored; the anterior part of the body has smaller and less j^rominent 

 suckers or A'erructe ; the skin is lighter colored, thinner, and more 

 translucei^t, and there is a zone bearing several rows of minute, slen- 

 der, acute, chitinous spinules, a little l>elow the tentacles. 



Haiils^^ o, and s, 85 to 110 fathoms. It has also been dredged, in 

 60 to 94 fathoms, off Casco Bay. 



? Phascolosoma boreale Keferstein. 



Beitrage zur Anat. und syst. Kentniss der Sipimculiden, p. 206. 



This species is rather short and thick, obtuse posteriorly, nearly 

 smooth to the naked eye, and destitute of both hooks and distinct 

 suckers, but the skin is minutely wrinkled transversely, and covered 

 with almost microscopic slender papillte, and is minutely specked 

 with dirty yellowish brown ; the retractile i)ortion is more distinctly 

 granulated anteriorly. The tentacles are rather numerous, small, and 

 simple. 



Dredged also off Casco Bay, 64 fathoms; Cashe's Ledge, 50 to 72 

 fathoms ; and iii the Gulf of St. Lawrence (Whiteaves). 



