S. 1. Smith — Crustaceans of the Atlantic Coast. 113 
fathoms, sand, very abundant. Between Cape Ann and the Isles of 
Shoals!, 43 to 68 fathoms, mud, 1874. Jeffrey’s Ledge !, Gulf of 
Maine, 51 fathoms, hard sandy mud, 1S74. Cosco Bay!, 1873: 16 
and 17 fathoms, mud, abundant; 27 fathoms, off* Halfway Rock; 45 
fathoms, off Seguin Island ; also taken with numerous Amphipoda, 
in 2 fathoms, muddy bottom, in a small trap baited with pieces of 
fish. Bay of Fundy!, 1868, 1870, 1872. In 1872 it was also dredged 
in vast numbers at Eel Cove, Grand Menan, in 8 to 10 fathoms, sand, 
by Prof. H. E. Webster. Off Cape Sable!, Nova Scotia, 75 fathoms, 
fine sand and mud, 1877. In and near Halifax Harbor !, Nova Scotia, 
1872, 1877 : 20 fathoms, soft mud and sand; 16 and 18 fathoms, fine 
sand and red algte ; 21 fathoms, sand, stones and algte ; 42 fathoms, 
fine sand; 52 fathoms, fine sandy mud. Also about one hundred and 
twenty miles south of Halifax!, 190 fathoms, gravel and pebbles, 
1877. Northumberland Straits, Gulf of St. Lawrence!, 1873 (Whit- 
eaves). 
Upon the coast of northern New England, this is by far the most 
abundant species of the genus. It is undoubtedly the species which 
Stimpson called Cuma hispinosa , but his description is wholly insuffi- 
cient to characterize the species and I therefore prefer to retain the 
more appropriate name proposed by G. O. Sars, who has described 
and figured the species most admirably. Professor Sars has identified 
specimens which I have sent to him from different localities on the 
New England coast. 
Diastylis hicornis Bate, is a very different species, of which I have 
examined European specimens, but which I have never seen upon the 
American coast. 
Diastylis abbreviatus G. 0. Sars. 
Diastylis abbreviate. G. O. Sars, (Efversight Kongl. Vetenskaps-Akad. Forliandlin- 
gar, Stockholm, 1871, p. 74; Kongl. Svenska Vetenskaps-Akad. Handlingar, ix, 
no. 13, p. 30, pi. 12, figs. 62-64, 1871. 
Very rare in 30 to 35 fathoms, off the coast of New Jersey, north 
latitude 39° 54', west longitude 73° 15' (Josephine Expedition, Sars). 
Off Cape Ann!, 35 fathoms, sand, 1878, — one specimen among great 
numbers of I), quadrispinosus. Casco Bay!, 1873: 1 7 fathoms, mud ; 
also at one other station. 
This very pretty species appears to be rare. 
Trans. Conn. Acad., Vol. V. 15 
April, 1879. 
