CRUSTACEA. 
349 
CVPRIDINIU^E. 
Cypridina norvegica (Baird), Sars, 1. c. p. 104, from the Gulf of Nidarosia; 
C. 77iessinemts, Claus, Zeitschr. fiir wiss. Zool. xv. p. 163, pi. 10. figs. 1-9, 
from Messina. 
Cypridina. Prof. Claus (Zeitschr. fiir wiss. Zool. xv. p. 14.2) has 
communicated a paper on the organization of this genus as illus- 
trated by a species (C. messinensis) which he found very abun- 
dant. He describes the structure of all the organs, and clearly 
illustrates the same in seven figures on plate 10 ; among which 
he describes and figures several minutely articulated hairs armed 
with lateral cilia of peculiar structure j these he calls organs of 
smell, and says (p. 148) that all admit that the anterior antennae, 
not only in Crustacea, but in the whole of the Arthropoda, are 
Organs of smell — a statement that the more recent observations 
of carcinologists tend to disprove. 
Halocypris. Prof. Claus, 1. c. p. 399, publishes an account of 
the sexual distinctions of animals belonging to this genus. His 
chief observations have been upon a species that he took abun- 
dantly in the sea near Messina, which corresponds very closely 
with II. atlantica of Lubbock. His researches tend to show 
that the female differs from the male — 1, in being longer and 
narrower, the male being shorter and broader in proportion, 
though altogether smaller ; 2, in the difference between forms of 
the anterior antennie in the male and in the female ; 3, in a se- 
cond appendage being attached to the underside of the second 
pair of antennae, which in the male carries a strong prehensile 
hook; 4, in the form of the second pair of feet; and 5, in the 
organs of copulation. Consequently the author concludes that 
there is no small amount of dimorphism in the form of the 
males and females of this genus,^^ 
rjiilomedes longicortiis (Lilljeborg), Sars, 1. c. p. 107, from the Gulf of 
Christiania and Sweden. 
Pradymietiis, g. n., Sars, /. c. p. 109 (= Cypridina, Lilljeborg). Valvulae 
testae sat ventricosae et quam in generibus antecedentibiis striictura duriore, 
superficie dense punctata. Incisura testae infra medium sita profunda, pectine 
setoso ubique marginata. Antennae snperiores 6-articulatae . . . . ; inferiores 
fere nt in Cypridina, ramo natatorio 9-articulato .... Oculi parvi, .... vix 
per testam visibiles; Bradycinetiis glohosus (Lilljeborg), Sars, 1. c. 
p. 110, from the Gulf of Christiania ; B. lilljehorgii, sp. n., Sars, 1. c. p. 112, 
from Drobak. 
CONCHCECIID^. 
Conchoecia elegans, sp. n., Sars, 1. c. p. 117, from Drobak and the Lofoten 
Islands ; C. ohiusata, sp. n., Sars, 7 c. p. 118, from the Gulf of Nidarosia; C. 
borealis, Sars, sp. n., 1. c. p. 119, from the Lofoten Islands. 
PoLYCoPiDiE (Sars). 
This family comprises only Poly cope, g. n., Sars, 1. c. p. 121. P. oihicidaris, 
sp. n., p. 122, from the Lofoten Islands. 
