286 Occasional Papers Bernice P. Bishop Museum 
SQUILLIDAE 
There are, at the present time, six recognized genera of the 
Squillidae, all of which are represented in the Bishop Museum 
collection by one or more species. 
The following key, presenting the distinguishing characteris- 
tics of the genera, is one formulated by Kemp’. 
I. Articulation between merus and ischium of raptorial claw terminal 
(normal) ; merus grooved inferiorly for reception of propodus through- 
out its length; propodus finely pectinate or with a series of fixed spines 
along outer edge of dorsal surface; dactylus rarely inflated at base. 
A. Carapace with well-marked carinae; cervical groove defined across 
dorsum of carapace; first five abdominal somites with longitudinal 
carinae (raptorial dactylus not inflated at base).....Squilla, p. 287 
B. Carapace without carinae; cervical groove not extending across 
dorsum of carapace; first hve abdominal somites without longi- 
tudinal carinae’. 
1. Abdomen usually compressed; raptorial dactylus not inflated 
at base with two, rarely three, teeth on inner margin,‘ 
or unarmed; telson with sharp median carina and (in 
adults) wath) other caninae onerthemisidc essen 
CURL ONO ean ER, eae Pseudosquilla, p. 288 
bo 
Abdomen depressed; raptorial dactylus not inflated at base 
with at least four teeth on inner margin; telson without 
median carina, often smooth or with a transverse circlet of 
Spies. 2s th il oe Sy ASS lie enw ALOU, ree EN Lysiosquilla, p. 292 
=) 
3. Abdomen depressed; raptorial dactylus with three teeth on 
inner margin; telson closely studded with fine spineules or 
large tubercles, with or without a pair of submedian carinae 
NRO Soke ee eS BO Ske Coronida, p. 205 
Il. Ischio-meral articulation of raptorial claw situated at a point anterior 
to proximal end of merus, which consequently extends backward con- 
siderably beyond the joint; ventral surface of merus grooved and _ hol- 
lowed for reception of propodus for not more than three-quarters its 
length; dactylus inflated at base. 
A. Dactylus of raptorial claw with teeth on its inner margin... 
sc dasha Sette ie te Ne AC a eae 0 EE eG me Odontodactylus, p. 297 
B. Dactylus of raptorial claw without teeth on its inner margin 
a Re ore Le ar ER PE Ce tec A Gonodactylus, p. 299 
*Kemp, S., Crustacea Stomatopoda of the Indo-Pacific Region: Mem. 
Indian Mus., vol. 4, p. 16, 1913. 
*See Kemp’s exception and reference in his footnote No. tf. 
“Kemp excludes the terminal tooth. See his footnote No. 2 
[8] 
