370 A. K Verrtll— Marine Fauna off N~ew England Coast. 



Grrubea WebsteriY.* Splicer osy Ms, sp., Pcedophylax lotx/in-psY., 

 etc. The Nereis megalops V., both in the heteronereis-form 

 (Nec(onereis) and in the nereis-form (Nl alacris V.), frequently 

 occurred in our night excursions, and in September the younj» 

 of this species of all sizes, from those with only six or eight 

 segments, up to those that were 10 mm or more in length, oc 

 curred abundantly at the surface. These young are ve in- 

 active, translucent, aud nearly white, with small, red specks 

 over the surface. A very interesting new species, Acrocirrus 

 Lehhji V.,f belonging to a genus hitherto not recorded from our 

 const, was taken at the surface several times this year, and also 

 in 1881. Podarke obscura V. was often abundant at the sur- 

 face, as well as in the soft mud, among eel-grass, in the harbor. 

 Among other surface Annelida w< tv r; r ;,,,.. ,■■ i- phosphorea V. 

 and C. fragiUs, and a species of Prionospio, probably identical 

 with P. tenuis {Spiophanes tenuis V., 1880). This was also taken 

 from the harbor mud, in shallow water, last year. When perfect 

 it has four pairs of gills, all fringed on one side, (Tr. Conn. Acad., 

 iv, pi. xix, fig. 7). A singular larval form, probably belonging 

 to this species, occurred once (September 9) at the surface. 



Among the various larval forms of Annelids we were fortu- 

 nate in obtaining a very large number of Chcetopterus pergamen- 

 * Grubea Websteri V., sp. nov., Trans. Conn. Acad., iv, pL 24, figs. 6-8. Small. 

 slender, whitis dra erf tentec- 



ularcirri, dorsal iekesl below 



ipering and acute, not differing much in .size nor in length, but the 

 first pair of dor- — th,. cLhth. are ;i little longer than the 



; 



her long, Bat I . fringed on the i 



crag, capillary, - 



i present) on the iiintl - r',- ro'i - - _<, ,-iit m , . on inu ■ n 







r 9, 1881 and 1882. Descri 



