BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 
595 
Echinorhynchus sagittifer Linton. 
Linton, 1889, p. 493 (sp. nov.), Linton, 1891, 
p. 535; Linton, 1901, p. 409, etc. 
Hosts: Centropristes striatus (peritoneum), Cy- 
noscion regalis (viscera), Paralichlhys dentatus 
(viscera), Pomatomus saltatrix (peritoneum), 
Raja erinacea, Rhombus triacanthus (viscera), 
Stenotomus chrysops. 
Echinorhynchus aurantiacus Risso. 
Linton, 1891, p. 533 ( Echinorhynchus serrani , sp. 
nov.); Linton, 1901, p. 409, 456 (E. serrani ). 
From peritoneum of Centropristes striatus. 
Echinorhynchus thecatus Linton. 
Linton, 1891, p. 528 (sp. nov.); Linton, 1901, p. 
409, 456. 
Host: Morone americana. 
Echinorhynchus , sp. undet. 
Linton, 1901, p. 409, 47T (and MS.). 
Undetermined representatives of this genus were 
found in Centropristes striatus, Lophius pisca- 
torius, Lopholatilus chamceleonticeps (two oc- 
casions), Morone americana, Thunnus thynnus. 
Class CHAETOGNATHA. 
Sagitta elegans Verrill. 
Verrill and Smith, 1873, p. 626, 440, etc. (sp. 
nov.). 
“Woods Hole and Vineyard Sound, at surface, 
July 1; off Gay Head, among Salpce, Septem- 
ber 8.” 
Sagitta sp. 
Verrill and Smith, 1873, p. 440, 453. 
An undetermined species, larger and stouter 
than S', elegans, reported by Verrill as taken 
in large numbers at Woods Hole by V. N. 
Edwards in January and February. 
Sagitta sp. 
One or more species of Sagitta (undetermined; 
doubtless including those listed by Verrill) 
are a conspicuous feature of the local plankton 
during the winter and spring. According to 
Mr. Edwards’s towing records, they are present 
in greatest abundance during December and 
January, but are recorded from October till 
July. 
DINOPHILEA. (Incertae sedis.) 
Family Dinophilid^. 
Dinophilus gardineri Moore. 
Anne Moore, 1900, p. 15 (sp. nov.). 
Woods Hole, in an artificial pond of brackish 
water, May, 1898 and 1899. 
Dinophilus pygmceus Verrill. 
Verrill, 1892a, p. 457 (sp. nov.). 
Dinophilus pygmceus — Continued. 
Woods Hole, on piles of a wharf, Aug. 10, 1883. 
Dinophilus simplex Verrill. 
Verrill, 1892a, p. 458 (sp. nov.). 
Newport, August, 1880. 
Phylum MOLLUSCOIDA. 
Class BRYOZOA. 
BRYOZOA ENTOPROCTA. 
Family Loxosomid.E. 
Loxosoma davenporti Nickerson. 
Nickerson, 1898, p. 220 (sp. nov.); 1899, p. 366; 
1901, p. 351; Osbum, 1912, p. 212. 
Cotuit Harbor, in tubes of sand, 1 foot deep; 
locally common. 
Loxosoma minuta Osbum. 
Osbum, 1912, p. 212 (sp. nov.). 
“Found on Phascoleon strombi ( =Phascolosoma 
ccementarium) in the Woods Hole region, and 
on Phascolosoma eremita at the Isles of Shoals, 
often in considerable numbers among the 
tubercles of the skin. ” 
Family PF.DlcEtLiNlDaj. 
Pedicellina cernua Pallas. 
Verrill and Smith, 1873, p. 707, 405, etc. ( Pedi- 
cellina Americana)', Osburn, 1912, p. 213. 
New Haven to Vineyard Sound. — Verrill. New 
Bedford Harbor, on piles, very common, 
growing intermixed with Bowerbankia gracilis; 
Nobska Point, in shallow water; Vineyard 
Sound, off Vineyard Haven, 7 fathoms; Crab 
Ledge, in 18 fathoms. A form which may be 
a different species occurs on the piles at New 
Bedford. This bears a varying number of 
blunt spines on the head. 
