296 A. M Verrlll — Neio England Annelida. 



Harmothoe imbricata. 



Lepiclonotus squatmaus, p. 295. (squamatus) 



The Pontohdellaf livida, p. 291, pi. 8, fig. 9, is undoubtedly a 

 Nemertean — perhaps a Cerebratulus or Micrura, but is indeterminable. 



1868. — Ernst Ehlers. Die BofstenioiXrmer {^Annelida Choetopoda), 

 [pp. 1-268, jf^^. 1-11, p?<J^. 1864; p/>. 269-748, ^?. 12-24, 

 1868]. Leipzig, 1864-1868. 



Ehlers published in 1868 the second part of his large and elaborate 

 work on Annelida. He had received from the Museum of Compara- 

 tive Zoology, Cambridge, a collection of New England annelids, and 

 in this part of his book lie described, in detail, a number of our com- 

 mon annelids and illustrated several of them. To one of the most 

 common species, his Glycera dihranchiata, he devoted thirty-two 

 pages of text and numerous figures, partly anatomical. He described 

 its anatomy with considerable detail. The following are the species 

 particulai'ly mentioned by him as from the New England coast. 



List of Species. 



Nereis pelagica, p. 511, pi. 20, figs. 11-20. Labrador to Nahant, 



Mass. 

 Nereis virens, p. 559-563, pi. 22, figs. 29-32. 

 Nereis limbata, sp. nov., pp. 567-570. 



Nephthys caeca, p. 588, pi. 23, figs. 10-34. Eastport to Naliant. 

 Nephthys hucera, sp. nov., pp. 617-619, pi. 23, fig. 8. Massachusetts 



Bay. 

 Nephthys discors, sp. nov., pp. 626-629, pi. 23, figs. 39, 40. East- 

 port, Me. 

 Nephthys ciliata, p. 629, pi. 23, fig. 36. Edgartown, Mass. 

 Nephthys picta, sp. nov., pp. 632-635, pi. 23, figs. 9, 35. Vineyard 



Sd. to S. Carolina. 

 Glycera capitata, p. 648. =Rhynchobolus capitatus Clap. 



Glycera Americana Leidy, ]tp. 668-670, pi. 23, figs. 43-46. =Rhyn- 



chobolus Americanus Y. 

 Glycera dibranchiata, sp. nov., pp. 670-702, pi. 24, figs. 1, 3-8, 



10-28. Mass. Bay, New Jersey. = [Euglycera dibranchiata 



Y.]* 



* Tliis species difEers so much from the typical sijecies of Glycera and Rhynchobolus 

 (whether the latter be distinct or not), that I propose to establish a new genus [Eugly- 

 cera) for it. Euglycera may be distinguished by possessing two ligulate branchite to 

 each branchiferous parapodial appendage ; one of these is connected, at base, with 

 the dorsal side of the parapodia ; the other, with the ventral side. Proboscis and 

 jaws are as in Rhynclwholus. 



