
G 
HaLe—AUSTRALIAN CUMACEA 363 
Hxopod of uropad not much shorter than endopod, Sixth pleon somite but little broader 
than long fC. 33 3: a ich eostata Calinan, 
Exopod of Uroped only three-fifths as long as endopod. Sixth pleon somite half as_wido 
again us long ,, ve - -% we .. turgida Hale, 
7, Carapace with surface irregular, with a pair of dorso-lateral ridges or folds, and with a 
large shallow depression on sides os aes. we —_ . & 
Carapace with surface smooth or almost so, with no dorso-lateral ridges, and no large de- 
pression on sides . . ey v vs 48 we ». 1s 
8. Lower part of sidea of carapace without longitudinal ridge or fold bicristaia Calman. 
Lower part of sides of carapace with a longitudinal ridge or fold % oh 
9. Rami of uropod as Jong, or almost as long, as peduncle 34 o . ve 90, 
Rami of uropod short, at most leas than two-thirds as long as peduncle —. - v.11, 
10. Inner margins of peduncle and trisegmentate endopod of uyopod with many short spines 
(13-+-19). Female only .- 1 aA Ls. *robusla ap. nov. 
Inner margins of peduncle and bisegmentate endopod of uropod with few spines (2 to 8 + 
6 to 8). Males only a 1 rw - dilatala. ep. nov. 
i, Telson with only 4n inaignificant post-anal portion. Carapace with folda but no sharply 
defined ridges, and with branchial regions swollen, Peduncle of uropod mate than twico as 
long as endopod ft. ai or rv *ytrumosa. sp, Nov, 
Telson with almost ono-third of its length post-aual. Carapace with distinct caringe but 
with branchial regions not swollen, Peduncla of uropod much Jess than twice as long aa 
endopod an ~: Us we be -. Gmpla sp, nov. 
12. Telson with one-thied of its length post-anal us = .. sublilig ap, nov. 
Telgou with at most an insignificant podt-anal portion “+ mt -- 13. 
13. Each pseudorostral lobe with a sharp dorsal cavina, extending from front ta ocular lobe 
carinirostris sp. nov. 
Pseudoroatral lobua not carinate ‘ be = te 1a 
14. Antero-lateral angle of carapace denticulate, Telson with distinct spines at distal and ,, 18, 
Antero-lateral angle of catapace not denticulate, Telson unarmed is -- 1. 
15. Oarapace with anterior half of inferior margin serrate. Second peracopod with isehium. 
suppressed, and with rs ee twice as long ae propodus and dactylus together. Dactylus of 
second to fifth peracopods about three times as long us propodua truacatifrons Hale. 
Carapace with inferior margin not serrate oxeept af antero-lateral angle. Second peranopod 
with ischium. distinct, and with carpua not longer than propodus and dactylus together. 
Dactylus of socond to fifth perseopods barely or not longer than propodus polita sp, nov. 
16. Endopod of uropod trisegmentate in female at on harimeyert Zimmer. 
Endopod of uropod bisogmentate in female (anisegmentatea in male) .. similis Zimmer, 
17. Garapace smooth .. = TY °. os i +. 18, 
Carapace with spines, tubereles, ridges or tumidities 7) fee .. 80. 
18. Telson with lateral margins serrate, and with a pair of terminal spines, cach flanked by a 
lateral spine ote *e “4 “ ia anbigue ap. nov. 
Telson unarmod, and with Idtoral margins entire -. ir tr . 
19, Endopod of uropod unisegmentate, Male with exopods on first and second peracopods only 
laevis Oalman, 
Endopod of uropod bisegmentate. Male with exopods on first, aecond and third peragopods 
alienuata ap. Moy. 
20, Sides of carapace closely beset with spines x 4 echinata sp, nov, 
Sides of carapace not spiny .. $y 5 re &, a. 21. 
21, Sides of carapace studded with ama) glasey tuberctes _ . - hoscida sp. DOV, 
Sides of carapaco withont such tubercles 7 te ee +. 22, 
22, Each gide of carapace with a well-defined ridge, curving up from neighbourhood of antennal 
angle to meet a dorso-lateral mdge an " as °. -- 83, 
Oarapace without this transverse ridge .. + re lo +. 24, 
23, Telaon with at least one pair of lateral teeth and, in adult, with apex pointed and projecting 
ad. 
for # short distance beyond bases of a pair of subterminal spines. Endopod of uropod 
unisegmontate in both sexes ., #2 4: ve mutabilis sp, nov, 
Telson with lateral margins entire, its narrowly subtruncate apex with a pair of small 
spines. Hndopod of uropod bisegmentate in both sexes ‘ -. Ornate ap. noy. 
Rami of uropod unusually ehort, less than half as long as the peduncle, . +. 26, 
Bami of uropod usually almost as long as peduncle and slways much more than half as 
long ap it a as . . es .- 26, 
