
156 RECORDS OF THE S.A. MUSEUM 
a spine; (2) the pleon has the dorsal elevations higher and more slender while the 
fifth somite (like that of the related ossiana Stebbing, 1900, p. 612, pl. Ixiv A) 
is not noticeably longer than any of the others; (4) the urepods are shorter and 
the carpus of the fifth legs relatively longer. 
N. erinaceus Zimmer (1913, p. 450, pl, iv, fig. 86-37), has the carapace prick! y 
as in asper but the thorn-like armature is differently arranged, while a pair of 
spines between the eyes are prominent, and there is a spine on each eye; the uro- 
pods nf Zimimer’s single female, from South Afriea, are damaged. 

fig. 7. Nannastacus asper, paratype male; ant. mxp. and prp., first antenna, third 
maxilliped and paraeopods (xX 70; dactylus of maxilliped, % 156); urop., uropod with fifth 
pleon and telsonic somites (x 70). 
NANNASTACUS SHEARDI sp. noy. 
Cumella lima Hale (male only), 1986, p. 436, fig. 23, h and i. 
Ovigerous female. Back and sides studded with small granules, none of which 
is enlarged or outstanding; a few scattered hairs are present. 
Carapace one-third of total length; its greatest width, at the rear, is a little 
greater than its depth, and equal to three-fourths its length ; there is a very fine 
but cistinet median dorsal carina; seen from the side the dorsum is elevated at pos- 
terior end and the pseudorostrum is directed obliquely upwards. Antero-lateval 
margin not deeply concave; antero-lateral angle and margin behind it serrate (fig. 
8, ¢. pace). Pseudorostral lobes meeting for whole length; both fron above and 
from the side they are truncate and serrate in front. 
First pedigerous somite fully exposed, with its pleural parts, like those of 
second and third somites, markedly expanded laterally, but not backwards; the 
fifth is somewhat tumid dorsally. Seen trom above the whole cephalothorax is 
ovoid. 
First and second pleon somites with dorsum slightly more tumid than in 
others; fifth somite much longer than any of the others, distinctly more than 
