612 
ZOOLOGICAL LITERATURE. 
truly pedunculated and two in number ; during the further de- 
velopment they are enclosed by the cephalic shield and coalesce. 
The males are distinguished from the females by the length of 
the inferior antennae, by the presence of bifid natatory feet in 
the postabdomen, and the greater number of abdominal feet 
with natatory appendages. The genus Bodotria (Goodsir) is 
nothing but the male sex of Cuma. The bag-like form of the 
liver, the want of trabeculae in the heart, the shape of the caudal 
appendages, and the five segments before the postabdomen not 
being covered by the dorsal shield are points which bring the 
Cumacea nearer to the Isopods than to the Decapods. The 
formation of an incubatory pouch on the abdominal feet is also 
unusual in most Decapods, except Mijsis and Lophog aster, but 
common in the Edriophthalm Crustacea. The single gill and 
the heart are described by the author, but the results concern- 
ing these two organs are incomplete and somewhat different 
from those obtained by G. O. Sars in Vidensk. Selsk. Porhandl. 
f. 1864. 
Cuma anomala, sp. n., Dohrn, 1. c., Scotland. 
Cuma scoi'pioides (Montagu ?). Remarks by Norman, Report Brit. Assoc, 
for 1808, p. 273. 
Leucon nasicoides (Lillieborg), Ohristianiafjord, in 30-40 fiithoms, described 
by G. 0. Sars, /. c. p. 41. 
Eudora hirsuta, sp. n., G. 0. Sara, /. c. p. 43, ChristianiaQord, 150-200 
fathoms. 
Cumella agilis, sp. n., Norman, Rep. Brit. Assoc, for 1868, p. 272, Shetlands. 
Iphinoe, The genus Cyprianassa (Bate) is founded on the male of Iphinoe. 
Norman, ibid. p. 273. 
Diastylis Icevis, sp. n., and spinosa, sp. n., Norman, Rep. Brit. Assoc, for 
1808, pp. 270,271 j I), hispinosa (Stimps.) = t/cor?iw (Bate)=c<>rrm^a (Boeck) 
= bispmosa (G. 0. Sars), ibid., all from the Shetlands. 
Leptostylis, g. n. Near Diastylis ) a rudimentary palp, consisting of two 
joints at the third and fourth pairs of feet in the male, as in Lamprops. Type 
Diastylis longimana (Sars) j other species, D. ampullacea (Lilljeborg) and L. 
villosa, sp. n., Christianiafiord, 60-00 fathoms. Sars, Undersog. Christ, dyb- 
vandsf. pp. 39, 40. 
STOMAPODA. 
SCIIIZOPODA. 
The development of Mysis ferruginea (Beneden) has been 
studied by Ed. van Beneden. The blastoderm is formed by 
the partial cleaving of the yolk ; the blastodermic vesicle extends 
over the whole surface of the egg before any organ appears ; the 
division of the embryo into a cephalic lobe and a caudal lobe 
results from the division of a primordial cellular fold into two 
laminae ; the caudal appendix of Mysis is reverted beneath the 
abdomen as in all Decapods. The caudal lobe begins to be formed 
before there is any trace of the antennae ; these latter make their 
