KROYERA. 
171 
AMP HIP OD A . 
NATATOKTA. 
PHOXIDES. 
Genus— KROYERA. 
Kroyera. Spence Bate, Cat. Ampli. Brit. Mus. p. 106, but not of Synopsis 
Brit. Amph. Ann. Nat. Hist., 2 ser. xix. p. 140, Feb. 1857. 
Generic character. Like Monoculodes , but having the eyes 
apart, and the second pair of gnathopoda chelate. 
The head is produced and anteriorly depressed. The 
eyes are apart and distinct. The superior pair of an- 
tennae are without a secondary appendage. The in- 
ferior are slightly longer than the superior. The first 
pair of legs have the hands tolerably robust ; the wrist 
anteriorly produced along the inferior margin of the 
hand, until the tip reaches the lower edge of the palm. 
The second pair are longer than the first, and have the 
anterior extremity of the wrist produced along and ex- 
tending beyond the inferior margin of the hand ; the 
hand has the inferior angle produced anteriorly, so as 
to form, with the impinging finger, a perfectly didactyle 
claw. The third and fourth pairs of legs are uniform 
and subequal. The fifth and sixth pairs are uniform and 
subequal, being robust, and scarcely longer than the 
preceding pair. The seventh pair are very long, and 
terminate in a straight styliform finger. The caudal ap- 
pendages are double -branched, and the central tail-plate 
is squamiform and single. 
The species on which this genus was founded was first 
described as belonging to the same genus as Monocu- 
lodes , and under the name of Kroyera . But on dis- 
