604 
bulletin oe the bureau of fisheries. 
Lepralia pallasiana — Continued. 
Independent records for this species: Buzzards 
Bay at repetitions (1909) of Fish Hawk sta- 
tions 7645, 7648, and 7671, and of Phalarope 
station 83; Woods Hole Harbor, on piles; 
West Falmouth Harbor, shallow water; New 
Bedford, on piles; Cedar Tree Neck, along 
shore; Vineyard Haven, on piles; Muskeget 
Channel, 5 fathoms; Nantucket Harbor, on 
piles; Great Round Shoal fishing ground, 8 
fathoms; Crab Ledge, 14 to 20 fathoms (?). 
Locally, this is believed to be predominantly 
a shallow water form. 
Lepralia americana and L. pallasiana (combined 
records). [Chart 41.] 
Fish Hawk stations: 7557 (on eel grass), 7560 (on 
Chondrus crispus), 7587, 7611, 7614, 7619, 7656, 
7664, 7678, 7681, 7690, 7692, 7700, 7701, 7727 , 
7743' 7766, 7783. Supplementary stations: 
7525 (1906), 7526 (1907), 7537 (1906), 7581 
(1907), 7718 (1907), 7723 (1906), 7731 (1907), 
7739 (1907)' 778o (1907)- 
Phalarope and Blue Wing stations: 24, 36, 45, 
51, 58, 63, 68, 76, 82, 83, n8, 159 (1 small 
colony). 
Lepralia pertusa ( Esper). [Chart 42.] 
Verrill, 1879, p. 193 ( Escharina porosa)\ a Osbum, 
1912, p. 241. 
Vineyard Sound, 8 to 12 fathoms, common. — 
Verrill. Scattered stations in Vineyard Sound 
and Buzzards Bay; 3 to 15 fathoms, growing 
on shells and less commonly on oebbles.— 
Survey. Also recorded from Crab Ledge and 
Great Round Shoal. 
Fish Hawk stations: 7522, 7533 bis, 7538, 7544 
bis, 7549, 7717, 7723, 7726, 7739, 7770, 7775, 
7776. Supplementary stations (1909): 7624, 
7629, 7643, 7648, 7659, 7660, 7668, 7670, 7671, 
7672. 
Phalarope and Blue Wing stations: 46, 163, 167. 
Supplementary stations (1909): 83, 131. 
Lepralia serrata Osbum. 
Osbum, 1912, p. 242 (sp. nov.). 
Recorded from a few scattered stations in Vine- 
yard Sound and Buzzards Bay, 6 to 15 fath- 
oms; Muskeget Channel, in 7 fathoms; Crab 
Ledge, in 14 to 20 fathoms; Great Round Shoal 
fishing ground in 8 fathoms. This species 
grows on shells, forming at first a rather smooth 
and later a very rough incrustation. 
Fish Hawk stations: 7521, 7546 bis, 7549, 7726. 
Supplementary stations (1909): 7636, 7668, 
Phalarope 83. 
Mucronella peachii (Johnston). 
Verrill and Smith, 1873, p. 714, 496 {? Discopora 
coccinea ); Osbum, 1912, p. 243. 
Vineyard Sound and Quicks Hole, very abund- 
ant. — Verrill. Dredged by the Survey at 
scattered stations throughout Vineyard Sound; 
likewise taken at Crab Ledge, off Sankaty 
Head, at Great Round Shoal and in Muskeget 
Channel. For the most part this species occurs 
incrusting stones and shells, occasionally on 
algae. 
Fish Hawk stations: 7538, 7546 bis, 7697, 7723, 
7748, 7770, 7775. 
Blue Wing station 46. 
Mucronella ventricosa (Hassall). 
Osbum, 1912, p. 243. 
“Taken rather rarely at Crab Ledge, growing 
on stones and shells, at 14 to 20 fathoms.’’ 
Mucronella pavonella (Alder). 
Osbum, 1912, p. 243. 
Several colonies incrusting hydroid stems and 
stones at Crab Ledge, August 12, 1909. Also 
on shell of Modiolus modiolus , in U. S. National 
Museum, labeled “Vineyard Sound, 1875, 
station 4708.” 
Smittia trispinosa (Johnston). 
Osbum, 1912, p. 246. 
A number of colonies taken at Crab Ledge, 
August 12, 1909, on stones; also recorded from 
Buzzards Bay, near Penikese Island, at Fish 
Hawk station 7672. 
Smittia trispinosa nitida (Verrill). [Chart 43.] 
Verrill, 1875, p. 415 ( Discopora nitida, sp. nov.); 
Verrill, 1879, p. 195 ( Mucronella nitida)', 
Osbum, 1912, p. 246. 
Vineyard Sound. — Verrill. Abundant and 
almost universally distributed in Vineyard 
Sound; common, though perhaps less general, 
in Buzzards Bay. Dredged by the Survey at 
all depths and on every kind of bottom 
throughout the region, incrusting shells and 
stones. Recorded, also, from Woods Hole 
Harbor, on piles; Great Pond; Nobska Point 
and beach; shore of No Mans Land. 
Fish Hawk stations: 7522 (?), 7523, 7524 bis, 
7525 bis, 7528 (?) (on stones), 7530 bis, 7533 
bis, 7534, 7535 (on shells and stones), 7536 bis, 
7537 ( ? ) (on stones), 7538 bis, 7539 (?) (on stone), 
754i (?) (on stone), 7541 bis (?), 7543 (on shell 
of Modiolus), 7544 bis, 7545 bis, 7546 bis, 7547 
bis, 7549 bis, 7550 (on Thuiaria and Euden- 
drium), 7551 (on Clidiophora), 7551 bis (?), 7552 
(?) (on mussel shell and on stone), 7554 bis (?), 
a Dr. Osburn is unable to regard the Escharina porosa of Verrill as being specifically distinct from Lepralia pertusa (Esper). 
