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HALE—AUSTRALIAN CUMACEA 73 
Carapace encircled by a collar-like ridge .. 4 he cingulata Calman. 
Carapace not encircled by a collar-like ridge ae 3% pe <Be 
Sides of carapace never almost smooth, with at least one tumidity (antero-lateral tubercle ) 
or obtuse tooth-like projection below pseudorostral suture : a 
Sides of carapace almost smooth, with no fpeeidiiag or other projection below pseudorostral 
suture o. 24, 
A depressed quadritatarel area on each ids of carapace in at least female, ‘the edges defined 
by ridges or the corners marked by prominent projections Lean group) . 4 
No depressed quadrilateral area on side of carapace see +3 .. 15, 
Carapace with two transverse ridges on back in female; the first connects the upper antero- 
lateral tubercles of each side and the posterior one may be absent in the male 2 8 
Uarapace with one transverse ridge (crossing back in posterior half), or none .. 12, 
With a post-ocular tuberele on mid-line of carapace, immediately in front of first transverse 
carina Pa <li ..  tribulis Hale. 
No post-ocular tuber cle on mid- line of carapace 6 
Carapace with antero-lateral tubercle large, elevated and tooth- -like; posterior transverse 
carina produced on each side of back, forming a pair of conspicuous teeth .. eK 
Carapace with antero-lateral tuberele and posterior transverse carina not elevated to form 
large teeth ba -. 8 
Peduncle of uropod vabeqaal'? in a ieing th to rami (subadult female) persculpta Calman. 
Peduncle of uropod much longer than rami, more than twice as long in subadult female 
bovis Hale. 
Carapace with ridges swollen; dorso-lateral carinae as well as median carina on posterior part 
projecting slightly beyond hinder mar gin as three tubercles oe: 
Carapace with ridges not swollen; no dorso-lateral carinae on pone pat, 80 that only 
one tubercle (median) occurs at hind margin ie we 10, 
Hstimated length, subadult comets, under 5 mm,; a short sige" running forward from lower 
antero-lateral tubercle .. exsculpta Sars. 
Length, subadult cae 10 mm.; 10 ridge running forward from lower antero-lateral 
tubercle : ’ ac supersculpta Zimmer, 
With a longitudinal ridge from below antennal tooth chaiat to end of carapace (male) 
mMawsonde sp. Nov. 
With no such ridge a os 4 rhe a -. IL 
Mid-dorsal projection at hinder end of the slender carapace feeble; ridges feeble, the second 
transverse carina widely interrupted on back. Dorsal margin of second pedigerous somite 
oblique candida Zimmer, 
Mid-dorsal projection at hinder end of rotund carapace large; ridges well defined, the second 
transverse carina not widely interrupted on back. Dorsal margin of second pedigerous somite 
elevated + ds . : .. usitata Hale, 
Cephalothorax and pleon covered with small spines; no ridges on ‘pack or sides of carapace 
aspera sp. Nov. 
Cephalothorax and pleon not covered with small mpinen; ; well-defined ridges on sides of 
carapace oe abe : : ie 3 -. 13. 
A transverse carina across posterior part of back... <3 .. australis Sars. 
No transverse carinae on back ‘0 oe Jp * -+ 14, 
Quadrangular area on side of carapace with four prominent tubercles elegans Calman. 
Quadrangular area on side of carapace with one or two prominent tubercles similis Calman, 
Sides of carapace with tubereles or ridges posterior to the one or two antero-lateral 
tubercles j 
Sides of carapace ‘without elevation posterior to the antero- lateral tubercles .» 23, 
Side of carapace with three obliquely transverse carinae ar os se LT 
Side of carapace with one transverse curved carina or none a y 18, 
Carapace unusually small, less than half as long as pleon in female, and without mid- dorsal 
projection at hinder margin .. stbogae Calman. 
Carapace more than half as long as pleon and with a mid- dorsal projection at hinder margin 
triplicata Calman, 
With a longitudinal ridge from antennal tooth to about middle of length of ‘Sarapage .. 19. 
With no long ridge running back from antennal tooth +4 -+ 20, 
Dorsum of re a as seen from side, rising Sbrapily to an aeagey mnguiae peak at middle 
of length a ‘ .- simula sp. nov. 
Dorsum of carapace smoothly ‘rounded .. ‘a ats coelebs Calman, 
