562 
bulletin of the bureau of fisheries. 
Family Corymorphid^E. 
Corymorpha pendula Agassiz. 
Verrill and Smith, 1873, p. 736, 510; Nutting, 
1901, p. 337, 370; Hargitt, 1901b, p. 580; 1902a, 
p. 549; 1904, p. 34 (Hybocodon pendula)', Mayer, 
1910, p. 41 ( Hybocodon pendula). 
Sandy bottom in rather deep waters in Vine- 
yard Sound and Muskeget Channel and off 
Chatham and Nantucket. — Hargitt. Dr. Har- 
gitt has found medusae which are believed to 
belong to this species, but thus far their deri- 
vation from the polyp form has not been 
demonstrated by actual observation. 
Family Tiarid.®. 
Protiara haeckeli Hargitt. 
Hargitt, 1902, p. 17 (sp. nov.); 1904, p. 34; 
Mayer, 1910, p. 106 ( Protiara borealis). 
“ Off Gay Head and No Mans Land, Vineyard 
Sound. Several specimens were taken on 
two occasions during the summer (July and 
August) in the same general region. ” — Hargitt. 
Stomotoca apicata (McCrady). 
A. Agassiz, 1865, p. 168; Verrill and Smith, 1873, 
p. 734, 45s (no local records); Fewkes, 1881, 
p. 151 ( Dinematella cavosa)', p. 152 ( Stomotoca 
apicata)-, Mayer, 1900, p. 3; Nutting, 1901, p. 
371; Hargitt, 1904, p. 35; Mayer, 1910, p. 109 
(1 Stomotoca dinema). 
Newport. — -A. Agassiz, Mayer, Nutting. July, 
August, and September. 
Stomotoca rugosa Mayer. 
Mayer, 1900, p. 4 (sp. nov.); Hargitt, 1901b, p. 
581; 1904, p. 35 ; Mayer, 1910, p. 112. 
Common at Newport. — Mayer. According to 
Brooks, this is the medusa of Perigonimus 
minutus Allman. 
Tunis vesicaria A. Agassiz. 
Nutting, 1901, p. 375; Hargitt, 1904, p. 36; 
Mayer, 1910, p. 126. 
Medusa at Woods Hole, collected by V. N. 
Edwards. — Nutting. This species has not 
been taken by Hargitt. 
Tunis episcopalis (Forbes). 
Fewkes, 1881, p. 147; Hargitt, 1904, p. 36; 
Mayer, 1910, p. 126 (Tunis vesicaria). 
Newport.— Fewkes. 
Turritopsis nutricula McCrady. 
L. Agassiz, 1862; A. Agassiz, 1865, p. 167; 
Verrill and Smith, 1873, p. 734, 454; Fewkes, 
1881, p. 149 ( Modeeria multitentacula ); p. 
153 ( Turritopsis nutricula ); Nutting, 1901, p. 
375; Hargitt, 1904, p. 37; Mayer, 1910, p. 143. 
T unitopsis nutricula — Continued. 
Medusa atNaushon. — A. Agassiz. WoodsHole. — 
Nutting, Hargitt. Recorded by Agassiz for 
July and September. Specimens believed 
to belong to this species have been taken by 
Mr. Edwards in March and August. 
Family Bougainvxluid/E. 
Podocoryne fulgurans (Agassiz). 
A. Agassiz, 1865, p. 163 ( Dysmorphosa ful- 
gurans)-, Verrill and Smith, 1873, p. 734, 
448, etc. ( Dysmorphosa fulgurans)-, Nutting, 
1901, p. 374 (Dysmorphosa fulgurans)', Hargitt, 
1904, p. 38 (Dysmorphosa fulgurans)-, Mayer, 
1910, p. 139. 
Buzzards Bay, at Naushon. — Agassiz. Through- 
out the Woods Hole region, during the sum- 
mer. — Nutting, Hargitt. 
Podocoryne carnea Sars. 
Bumpus, 1898b; Hargitt, 1902a, p. 554; 1904, 
p. 38; Mayer, 1910, p. 136. 
Vineyard Sound; Tarpaulin Cove.— Hargitt. 
Buzzards Bay, at 1909 repetitions of Fish 
Hawk stations 7618*, 7648*, and 7653* in each 
case on shells occupied by hermit crabs.— 
Survey. Hydroid phase chiefly on the 
shells of hermit crabs. Medusae fairly com- 
mon locally. 
“ Breeding ” during August. — Bumpus, citing 
Murbach. 
Hydractinia echinata Fleming. 0 [Chart 15.] 
A. Agassiz, 1865, p. 198 (Hydractinia polyclina)', 
Verrill and Smith, 1873, p. 736, 328, etc. (Hy- 
dractinia polyclina)-, Bumpus, 1898b, p. 858 
(Hydractinia (Echinata) polyclina)-, Nutting, 
1901, p. 335 (Hydractinia polyclina)-, Hargitt, 
1908, p. 97. 
Generally present in local waters; distribution 
in large degree coextensive with that of the 
hermit crabs, on whose shells it dwells, though 
this species appears to be nearly or quite 
lacking in the central portions of Buzzards 
Bay. Recorded from all of the Crab Ledge 
stations. Dredged on every sort of bottom. 
In the great majority of cases Hydractinia is 
found upon shells occupied by hermit crabs, 
though its presence has been noted in the fol- 
lowing situations by various local observers: 
rocks (Verrill); rock-weed and Limulus 
(Bumpus); piles of piers (Nutting, Osbum, 
Hargitt); maxillipeds of lobster, chela of 
a This species, according to Agassiz and Nutting, is quite distinct from the H. echinata of Europe. Eeidy, McCrady and 
Hargitt hold otherwise. 
