282 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY, 



72. Amphiporus brunneus Griffin. 

 Ann. New York Acad. Sci., 11, p. 212, 1898. 



This species is known only from Griffin's description ('98, p. 212), 

 which reads substantially as follows : — 



Length in alcohol 8.8 cm. ; \\adth 5 mm. Color in life dark brown 

 or smoky black dorsally; greenish or yello^dsh white ventrally, 

 wnth a pale, angular spot on each side of neck. 



Cephalic glands moderately developed ; cerebral sense organs con- 

 siderably in front of brain. Intestinal caeca reach nearly to brain 

 region. Basis of central stylet long ; two pouches of accessory 

 stylets with 2 (or 3 ?) stylets each. 



Habitat. — Port Townsend, Puget Sound. 



In some respects this description agrees with the characters of 

 Paranemertes j^eregrina, which is common in Puget Sound, but on 

 the following page (p. 218) the species is represented as bearing "a 

 more or less general resemblance to A. auffulatus.'" There can 

 hardly be said to be the slightest resemblance between P. peregrina 

 and A. a)igulati(s, so that even with Griffin's notes and material at 

 hand it is impossible to determine to wliich, if any, of the described 

 species this A. brunneus belongs. It must therefore stand as valid 

 for the present. 



73. Amphiporus drepanophoroides Griffin. 

 Ann. New York Acad. Sci., 11, p. 212, 1898. 



This species is known only from Griffin's description ('98, p. 212). 

 Griffin's account is substantially as follows : — 



Length 4-5 cm. or less ; form short and stout ; color red above, 

 white l)eneath ; eyes numerous, in row^s along antero-lateral margins 

 of head. Cephalic and submuscular glands prominent. Cerebral 

 sense organs large, situated beside brain and extending posteriorly 

 behind dorsal ganglia ; canals open in front of ventral commissxire. 



Differs from most other species of genus in smallness of rhyncho- 

 coel, which is enclosed in a thick muscular sheath in which longitu- 

 dinal and circular muscles are interwoven. No intestinal caecum ; 

 circular muscle-layer quite thick. 



