ee aa ae gps nis qi get 
G. M. Tuomson.—New Zealand Crustacea. 247 
Genus Caprellina, nov. gen. 
Body cylindrical. Cephalon confluent with first segment of pereion. 
Pleon rudimentary. Gnathopoda sub-chelate; branchiw attached to second 
pair. First two pairs of pereiopoda represented by the branchism attached 
to their respective segments; third pair feebly developed; two. posterior 
pairs well developed, subequal. First and second pairs of pleopoda 
rudimentary in the male, rest obsolete. 
This genus appears to be intermediate between Cercops and Caprella. 
From the former, it differs in not having the pleopoda developed, but agrees 
with it in having branchig attached to the second gnathopoda. In respect 
to this latter character it differs from its nearer ally Caprella, and also in 
having the third pair of pereiopoda feebly developed. 
The genus contains only the following species :— 
22, Caprellina nova-zealandie, nov. sp. Fig. D.6. 
Body slender. Second and third segments of pereion shorter than the 
three following; last segment very short. Superior antenne nearly half as 
long as animal; basal joint of peduncle stout, two succeeding joints long 
and slender; flagellum setose, semi-articulate at the basal end, ending in 
about ten articulations. Inferior antenn very short, reaching to middle of 
penultimate joint of peduncle of superior. First pair of gnathopoda with 
the propodos ovate, the palm extending along the inferior margin, fringed 
with eilia, and with two spines at the base; dactylos sparingly ciliated on 
inner margin. Second pair of gnathopoda much larger than first, and 
having the basos very long. Propodos long, narrow ovate, palm extending 
along half the inferior margin, hollowed out, and with two or three small 
spines at the-denticulation which receives the point of the dactylos, and a 
tooth near the hinge; dactylos slender, arcuate. Third pair of pereiopoda 
very small, but with well-developed carpus, propodos and dactylos. Fourth 
and fifth pairs of pereiopoda long; propoda well-developed, narrow- 
ovate, with slightly excavated palms fringed with strong spines; dactylos 
minutely ciliate on inner margin. Two pairs of pleopoda present, one- 
jointed, filiform, fringed with minute, comb-like cilia. Colour pale red, 
with dark spots and markings. Length :8 inch. 
Dunedin, in rock pools. 
DESCRIPTION OF PLATE X. 
Fig. A (all enlarged)— 
1. Crangon australis: (a), head viewed from above, magn. 2; (b), leg of first pair, 
. 6; (c), leg of second pair, magn. 3. 
2. Leander fluviatilis, magn. 1}: (a), rostrum, magn. 4. 
3. Oniscus punctatus, magn. 2: (a), caudal stylet, magn. 10. 
4, Ligia quadrata, magn. 13: (a), tail and caudal stylets, magn. 4, 
