27 Crust. 
grustacba. 
STOMA.PODA. 
Squilld empusa (Say). Brooks describes the metamorphosis from the 
A lima stage of the larva, probably that in which it escapes from the 
egg, to the adult form; Chesapeake Zool. Laborat. 1878, pp. 143-170, 
pis. ix.-xiii. 
Squilla Icevis, sp. n., Hutton, Tr. N. Z. Inst. xi. p. 340, Auckland 
Islands. 
CUMACEA. 
Diastylia politua, sp. n., S. I. Smith, 1. c. p. 106, Vineyard Sound, &c., 
on the surface. Nova Scotia, 190 fath. 
Diastilis hradyi and atrigata, Lough Swilly, co. Donegal, 15 fath., 
calveri, 63*^ N. 15*^ W., 1630 fath., and armata, 69° N. 60° W., 1760 fath., 
spp. nn., and 12 known species, described by Norman, Ann. N. H. (6) iii. 
p. 69, resp. 54-65. 
Heterocuma^ g. n. General form, obsolescence of the terminal post- 
abdominal segment, form of the uropods as in Eudorella (Norman), but 
the eye well developed ; two unequal setae at the tip of the flagella of 
the first maxillae ; third joint of the third pair of maxillipeds with its 
extero-distal angle greatly produced and acuminated, fourth joint of the 
same dilated and truncated at its distal extremity. H. sarsi, sp. n., with 
var. granulata, Japan, 40-60 faths. Miers, P. Z. S. 1879, pp. 57-59, 
pi. iii. fig. 3. 
P Diastylopsis, g. & sp. nn., Vancouver Straits, S. I. Smith, in Rep. 
Geol. Surv. of Canada, 1878-79, p. 206 b. 
Leucon seri'atus, sp. n., entrance of Davis Strait, 1750 fath., brevirostris, 
sp. n., South of Rockall, 109 fath., and longirostris (G. O. Sars), described 
by Norman, Ann. N. H. (5) iii. pp. 70, 71, & 69. 
Eudorella hirsuta (G. O. Sars), midway between Ireland and Rockall, 
1380 fath., described ; id. /. c. p. 72. 
Eudorella Integra^ sp. n., S. I. Smith, Tr. Conn. Ac. v. p. 116, aberrant 
form, like E. deformis, perhaps generically distinct. Nova Scotia and Gulf 
of St. Lawrence, 63-110 fath. 
Lampropa quadriplicata^ sp. n., id. I, c. p, 118, Massachusetts, 10 fath. 
Leptoatylia producta, sp. n., Norman, Ann. N. H. (5) iii. p. 65, Butt of 
Lewis, 59° N., 468 fath. 
Chalarostylis, g. n. Male with three pairs of the feet on the pleon, 
each consisting of a long peduncle and two branches furnished with 
plumose setae. Telson short, terminating in three spines. Uropods 
repaarkably long and slender. Otherwise similar to Diastylis. Female 
unknown. C. elegana^ sp. n., off Rockall, 109 fath. Id. 1. c. pp. 
65-67. 
Spencehaieay g. n. Male with five segments of cephalothorax exposed 
behind the carapace ; all feet, es^cept the last, palpigerous ; no feef; on 
pleon ; telson rudimentary ; both branches of urox^ods two-jointed. 
