206 BULLETIN OF THE BUREAU OF FISHERIES. 



Biology at the Tortugas, Fla., by the present writer (1908), only a few scattering species 

 have received mention, and that incidental. The species of the West Indies have been 

 entirely neglected, but Verrill has recorded a few from the Bermudas. 



While the Canadian Bryozoa have been fairly well studied through the efforts of 

 Stimpson, Dawson, Packard, Hincks, Whiteaves, and others, and Smitt's monograph 

 deals with the species of the deeper waters of the Floridan region, the extensive tract from 

 New England to Florida has remained entirely untouched, and the New England region 

 has been treated very inadequately. 



A number of short papers and references to New England Bryozoa are found in the 

 literature of the subject, but in nearly all cases these are buried in reports dealing with 

 other groups, and hence are not readily accessible and are easily overlooked. The first 

 of these to appear, and the first to be published in America as well, was a short list by 

 Desor (1848) of species obser\'ed by him in the region of Nantucket. This paper is 

 chiefly interesting because it contains the original descriptions of two of our most char- 

 acteristic species, Bugula turrita and Membranipora tenuis. In 1853 Leidy listed the 

 marine animals known to him from Rhode Island and New Jersey and mentioned a few 

 Bryozoa. Verrill and Smith's "Report upon the invertebrate fauna of Vineyard Sound 

 and vicinity" in 1884 contains a much larger number, about 32 species. Subsequently 

 Verrill has made incidental mention of a few other species of this region, bringing the 

 total number of Bryozoa recorded from southern New England up to about 40. Since 

 1879, however, the group has remained untouched in this region except for Nickerson's 

 papers on Loxosoma davenporti, and the morphological papers of Davenport and Dublin. 



In the present intensive study of a very limited region there has appeared a much 

 larger series of forms than the earlier papers would lead one to expect. The list of species 

 previously known has been more than doubled during our dredging work, and 81 

 species, besides a number of varieties that have been classed as species at some time in 

 the past, are now known to be represented in our fauna. The great majority of our spe- 

 cies are widely distributed over the North Atlantic and elsewhere as well. Only a small 

 number (5) are here described as new. In addition to these there are about seven others 

 which are known to occur only within this intermediate region between Florida and 

 Canada. These 1 2 species are : 



Loxosoma davenporti Nickerson. 



Loxosoma minuta, new species. 



Bugula turrita (Desor). 



Bugula cucullifera, new name (B. cucullata Verrill non Busk). 



Membranipora tenuis Desor. 



Cellepora americana, new species. 



Lepralia americana Verrill. 



Lepralia serrata, new species. 



Alcyonidium verrilli, new name (A. ramosum Verrill non Lamouroux). 



Amathia dichotoma (\'errill). 



Hippuraria armata (Verrill). 



Hippuraria elongata, new species. 



