38 Crust. 
CRUSTACEA. 
62<^-63” N. lat., 412-417 fath., described ; G. O. Sars, Arch. Math. Naturv. 
1876, p. 360. 
Dry ope (Bate) is scarcely distinct from Unciola (Say), the secondary 
branch of the antennae being present in D. crenato-palmata ; Stebbing, 
Ann. N, H. (5) ii. p. 369. 
DuLICBIIDAi}. 
DuUchia JiirticorniH^ sp. n., G. O. Sars, Arch. Math. Naturv. 1876, p. 361, 
Northern Sea, 62® N. lat., 1® E. long., 412 fath. 
Hypbriid.®. 
Hyperia tricuspidata, sp. n., Streets, Bull. U. S. Nat. Mus. No. 7, 1877, 
p. 125, North Pacific. 
Lestrigonus spinidorsalis, sp. n., C. S. Bate, Ann. N. H. (5) i. p. 411, 
Aberdeen. Is the male of Hyperia ; Norman, op. cit. ii. p. 383, footnote : 
this acknowledged by Bate, 1. c. pp. 487-489. 
Cystisoma neptuni (Guerin, 1842) = Thaumops pellucida (Willemoes- 
Suhm, 1873). Maxillae and maxillipeds described, and sexual difference 
pointed out ; it may establish a new family, Cystisom \_at] idee. Wille- 
moes-Suhm, Tr. L. S. (2) i. pp. 24 & 25, pi. xi. figs. 4-8. 
Themisto antarctica (Dana), described from New Zealand specimens ; 
the young, contained in the incubatory pouch of the female, have the 
gnathopoda not fully developed, but the pleopoda as in the adult, and 
approach Hyperia in general appearance. Thomson, Tr. N. Z. Inst. xi. 
pp. 242-244. 
Phrontmid^e. 
Peculiar glands of unknown function in the sixth and seventh pair of 
thoracic appendages of this family described ; P. Mayer, MT. zool. Stat. 
Neap. i. p. 40. 
Phronima sedentaria (Forsk.) and Phronimella elongata (Claus, 1862) 
observed at Naples, with notes on their envelopes, those of the latter 
not showing the microscopical structure of the Tunicata ; id. 1. c. 
pp. 40-48, pi. i. 
Phronima observed to enter into a living Ahyla or Salpa^ devour the 
polyp or nucleus, and use the empty envelope as a house for itself ; id. 
1. c. p. 46. 
Phronima pacifica^ sp. n., Streets, Bull. U. S. Nat. Mus. No. 7, 1877, 
p. 128, Pacific, 4® and 21® N. lat. 
AnchylonyXf g. n., very near Phronima ; both pairs of antennas present, 
long ; gnathopods not subchelate, nor very reduced in size j chelae of the 
third pair of thoracic feet less developed. A. hamatas, sp. n., Pacific, 
34® N. lat. Id. 1. c. pp. 130 & 131. 
Typhidj:. 
Platyscelus baiei, sp. n., Streets, 1. c. p. 133, Pacific, 21® N. lat. 
