(567 ] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 2738 
both ends of the second and third segments of the peduncle, and the 
antenne are obscurely banded and tinged with a lighter color. 
Length, about 6™™, 
It inhabits tubes constructed of grains of sand. 
In deep water off Vineyard Sound and Buzzard’s Bay. 
UNCIOLA IRRORATA Say. Plate IV, fig. 19. (p. 340.) 
Loe. cit., p. 389, 1818 ; Stimpson, Marine Invertebrata of Grand Manan, p. 45. 
This species grows to a much larger size than described by Say, being 
frequently 15"™™ in length. 
New Jersey to the Bay of Fundy, and probably much farther north, 
and from low water to more than 400 fathoms in depth. 
HYPERIA, species. (p. 439.) 
A large species of IZyperia was several times found upon the large 
red jelly-fish (Cyanea) in Vineyard Sound. The same species is com- 
mon in the Bay of Fundy, but has not been identified with certainty. 
Another species of Hyperia was taken at the surface, in company 
with Salpa, in Vineyard Sound, early in September. 
PHRONIMA, species. (p. 439.) 
A species of this peculiar genus was taken at the surface, in company 
with Salpa, off Gay Head, early in September. It is closely allied to 
the P. Atlantica of Guérin. According to Professor Verrill’s notes it 
is, in life, translucent, scarcely tinged with yellowish white, and nearly 
invisible in the water; the eyes red. 
Another form allied to the last was taken with it, and is possibly the 
male of the same species, but differs from it, and from the characters 
usually assigned to the genus, in possessing well-developed antennule. 
In life, according to Professor Verrill, if was translucent whitish, the 
body spotted with dark brown, and the eyes blackish. 
THYROPUS, species. 
A single specimen of a species of this genus was taken with the Phro- 
nima and Salpa, off Gay Head, early in September. 
CAPRELLA GEOMETRICA Say. Plate V, fig. 20. (p. 480.) 
Loe. cit., p. 390, 1818; Bate, Catalogue Amphip. Crust. British Mus., p. 357, Pl. 
56, fig. 8. 
North Carolina to Vineyard Sound, especially among eel-grass ; very 
aoundant in Great Egg Harbor, New Jersey, April, 1871. 
CAPRELLA, species. (p. 516.) 
A larger species of Caprella, which is common in the Bay of Fundy, 
was frequently dredged in Vineyard Sound. 
ISOPODA. 
SCYPHACELLA Smith, gen. nov. 
Near Scyphar, Dana.* Antenna composed of eight distinct segments, 
* U.S. Exploring Expedition, Crust., p.734, Pl. 42, fig. 5. 
