228 
convex, forming one-third of a circle, and the lower margin strongly 
geniculate at a short distance from the base. The immovable 
finger is extremely broad to rather near the end, where a deep 
triangular incision is formed; in reality the inner margin of this 
finger is strongly expanded, but this expansion ceases suddenly a 
little from the end of the finger, so that the incision mentioned 
is formed in this way, and the most distal part of the finger is 
very slender; it may be added that the distal part of the expansion 
shows a couple of small triangular teeth. The movable finger is 
distally slender and considerably curved, with two or more knots 
on the free upper margin. The walking legs have the second joint 
somewhat slender, without expansion; the sum of seventh joint and 
claw on the first and the last pairs somewhat more than half as 
long as the sixth joint; the claw on the first pair a little longer 
than the seventh joint, on the last pair very short. Pleopoda well 
developed, with natatory setæ.  Uropoda moderately long; inner 
ramus two-jointed, first joint as long as, or slightly shorter than, 
the second; outer ramus one-jointed, scarcely half as long as the 
inner. — Length of an ovigerous female 2-4 mm. 
Remarks. — At least provisionally I refer this species to 
Leptochelia, but the future discovery of the male may help to 
decide whether it shall remain here or is to be etablished as the 
type for a new genus. The. female differs from Paratanais and 
Leptochelia in having the "claw” of first walking legs only about 
as long as that of the next pair, and in the outer ramus of the 
uropods, which is not two-jointed as in Paratanais and not nearly 
rudimentary as in Leptochelia. But on the whole it seems to be 
allied to Leptochelia. In his first enumeration of the Danish Mala- 
costraca Meinert referred this species with some doubt to Para- 
tanais brevicornis Lilljebg.; in "Hauchs” Togter he does not express 
any doubt. But according to Lilljeborg”s description of the chela 
of his 7. brevicornis this species differs strongly from L. danica. 
Forekomst. — Meinert skriver: "Hos os er den navnlig 
kjendt fra den sydlige Del af Kattegat og gaar derfra op i Belterne 
