BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 



93 



The following is a list of the Foraminifera dredged by the Survey. The asterisk 

 denotes species which were recorded from 10 or more stations: 



Astrorhiza limicola. 



Reophax dentaliniformis. 



Haplophragmium canariense. 



Webbina hemispherica. 



Spiroculina limbata. 

 *Biloculina ringens (chart i). 



Biloculina tubulosa. 

 *Miliolina seminulum (chart 2). 

 *Miliolina oblonga (chart 3). 

 *Miliolina circularis (chart 4). 



Miliolina boueana. 



Miliolina venusta. 



Miliolina bicornis. 



Verneuilina polystropha. 

 *Polymorphina lactea (chart 5). 



Polymorphina concava. 



Polymorphina rotundata. ■ 

 *Discorbina rosacea (chart 6). 



Truncatulina lobatula. 

 *Pulvinulina lateralis (chart 7). 

 *Rotalia beccarii (chart 8). 

 *Polystomella striatopunctata (chart 9). 



Polystomella crispa. 



2. PORIFERA. 



The treatment of the sponges constitutes decidedly the weakest spot in our report. 

 In addition to the naturally great difficulties presented to the systematist by these 

 animals is the fact that the group has been very largely neglected by local zoologists. 

 Since the work of Verrill in the early seventies, in which a considerable proportion of 

 the forms recorded were not specifically determined, no attempt has been made to list 

 or describe the sponges of the shallower waters of the New England coast. Verrill's 

 later studies were devoted to species taken at considerable depths and belonging to a 

 fauna quite distinct from that under consideration. Lambe,° it is true, has given much 

 attention to the Canadian sponges, some of which are identical with species included 

 in the present work, and H. V. Wilson 6 has reported upon the Porto Rico forms, 

 none of which, however, are known to occur in the Woods Hole region. The paucity 

 of our data relating to the shallow-water species constitutes a conspicuous gap in our 

 knowledge of the local fauna. 



In view of this condition of affairs, Dr. J. A. Cushman, of the museum of the Boston 

 Society of Natural History, undertook during the summer of 1905 and during the fol- 

 lowing winter to identify the sponges collected in the course of the Survey dredging. 

 Twelve species were specifically determined by him with more or less certainty, four of 

 these being forms which had been overlooked or left unidentified by Verrill at the time 

 of the writing of the "Report upon the Invertebrate Animals of Vineyard Sound." 

 Certain other species were provisionally assigned to genera, and an even greater number 

 remained undetermined. It was unfortunately impossible for Dr. Cushman to continue 

 this work after 1905, and thus the results here presented are fragmentary and perhaps 

 not wholly consistent. 



In all, 14 determined species of sponges are comprised in our annotated list, the 

 identity of which is not certain in all cases. We have also included, on the authority of 

 Verrill and of Cushman, a number of unidentified forms, to which generic names have 

 been provisionally assigned. 



The Canadian list of Whiteaves comprises 36 (+2?) species of Porifera (identified 

 in the main by Lambe), six of which are common to our Woods Hole list. At Plymouth 

 only 18 sponges have been catalogued, of which four or five are common to our own 



» Sponges from the Atlantfc coast of Canada. Transactions of the Royal Society of Canada, vol. u, sec. iv, 1896, p. 1S1 

 b Bulletin of the U. S. FUh Commission, vol. xx, rgoo (1902). p. 375-411. 



