CRUSTACEA OF NEW ZEALAND. 231 



end truncate and fringed with a dense double row of long sette, which also form a dense 

 tuft on the posterior side. The carpus is triangular, widening distally, the short posterior 

 margin being densely covered with long seta? arranged in five or six transverse rows ; 

 there are no setae on the outer surface, but on the inner surface there is a transverse 

 row of long setae along the end and another shorter row at a slight distance from the 

 end; there are also two small tufts at the antero-distal angle and another situated more 

 j)roximally. The j^i'opodos is lai-ge, fully as long as the bases, ovate, about twice as long 

 as broad, and not much broader than the carpus ; the outer surface bears few setae, then 

 a few very small ones along the anterior margin, a small tuft at the base of the dactylos, 

 and a few along the palm ; on the inner surface near the anterior margin are five 

 transverse rows each containing fx*om five to seven long setae : the palm is slightly 

 convex and occupies almost all the lower margin ; it is defined by two large spines, a 

 third large spine is situated on the inner surface a little nearer the base of the propodos, 

 and near it are two or three small transverse rows of setae ; between the end of the palm 

 and the base of the j)i'opodos are two other transverse rows on the posterior margin ; the 

 palm is armed with a double row of short stout spines, and near the edge of the palm on 

 the inner surface are about six small tufts of setae. The dactylos is long and curved, 

 fitting closely ou to the palm ; the inner surface bears about six small tufts of setae ; the 

 inner margin is minutely serrate, the serrations lying close to one another, and it bears 

 about fifteen minute s^iinules placed at regular distances from one another along the 

 inner edge ; the extremity is acute. 



The second gnathopod (fig. 17) differs from the first in having the extremities of the 

 ischium and meros less densely fringed with setae; on the inner surface of the carpu.s 

 the transverse row situated a little from the end is very short, containing only about 

 six setae, and there is another small tuft near it ; in the propodos on the posterior 

 margin are six transverse rows, instead of two, between the base and the end of the 

 palm, and the tu.fts of setae near the palm are much smaller, containing only two or 

 three setae each. 



The description of the gnathopoda, as given above, applies to the adult female. I am 

 unable at present to say whether the male differs in any particulars or not. 



The first perceopod (fig. IS) is slender, of the same length as the second, and very 

 much shorter than the third. The coxa (side-plate) is rounded below and beax's a few 

 small setae irregularly placed along the margin. The bases is long, oblong in sliape ; the 

 anterior margin with three or four rather long setae near the base, and three short 

 spines towards the extremity ; the posterior margin is similarly supplied with setae, but 

 the long setae are further from the base. The ischium is short, rectangular, with a single 

 seta on the posterior margin at the extremity. The meros is slightly more than half as 

 long as the basos, and is somewhat produced at the antero-distal angle ; the anterior 

 margin is slightly convex, and bears three short spines, the last being at the extremity ; 

 the posterior margin is straight, and bears three tufts, each containing two slender setae. 

 The carpus is shorter than the meros, and bears on the posterior margin two spines and 

 a few slender setae. The propodos is a little longer than the carpus, and bears on the 

 posterior margin short spines arranged in four groups ; the anterior margin bears a few 



