175 
S. Kemp: Notes on Decapoda. 
1gI0. | ; Sa Greer 
< than at the base an 
ape eae der at the apex t inias, Lhe 
hee peers adjacent lobe of the ou ares Wiics 
wee Bs hie Nenad is narrow and bears from three 
apex of tne He oh rail 
ee Peace ail pea the third joint of the endopod 1 
In the 5 
$s 
ay 
pone istal margin. 
; ines on its inner dista ter than 
bears five stiff Rea first pair of ee eer eis 
The carpu : re than ha 
: ly a little mo : ighths the length 
the chela and is on ir the chela is seven-elg 
nd pair : or shorter than, 
merus. In the seco ius) is equal to, 
: d the dacty d carpus are of the 
of the carpus an . ir the merus an p 1 
the third pair ittle more than half, the 
ee ja is half, or a little more than the 
nts ste Beue saa the dactylus is a trifle shorter 
length O : 1 all 
: Te liv carinate and a 
palm. ie minal somite alone is dorsa sith the exception 
ES a aoee te on the abdominal Bees phe of the telson 
en are blunt and Umea a de ne tio setae, of 
fo) four or five pa ginal 
: ts tour 5 t margin 
= eae le is the longest, between sates 
pe : lance to that ot 
spines. bears some resemb ae heat 
The petasma (figs. 5, ) b he dissimilarity which oe Scale 
b t udging by the ‘ . h nte? 
nadas parvus, DU é cters, more especially in the amt the two 
gard to the other c me se Acs (sae Pence manner. The 
and ae Ua ny rtt-<iul aspect varies considerably in 
forms are allied to 
al ° ° 
SCAT pointed apically and reaches as far as the 
wustal Margin. 
I have associated this species with the name of Lieut.-Colonel 
Alcock who has given a very accurate description of the thelycum 
(loc. cit., Igor, p. 47, sub ““G. parvus”). His account, which 
may be compared with fig. 8, runs as follows :—« The thelycum 
consists of a horizontal, subtriangular plate or tubercle, placed 
between the third pair of legs, followed by two t 
between the fourth and fifth pairs. 
somewhat W-shaped with the posterior notch of the W filled 
by a tooth in the middle of the anterior border of the second 
bar.” 
The specimen which Miss Rathbun 
nadas parvus, remarking that the thelycum agrees exactly with 
Alcock’s description, is certainly quite distinct from the species 
here described. The true female of Spence Bate’s G. parvus, 
which I have recently discovered in a collection made by Dr. J. 
Stanley Gardiner, is, in respect of the thelycum, wholly different 
both from the present 
species and from that figured by Miss 
Rathbun. 
ransverse bars 
The first of these bars is 
' has attributed to Gen- 
1 Rathbun, Bull. U.S. Fish Comm. for 1903, 1906, p. 907. 
