Crustacean Fauna of South Africa. 
bho 
2 
fos) 
HYALE INYACKA 0. sp. 
(Plate XXVIII. Fig. 4.) 
Body not very shiny, dorsaily rounded. Eyes elongate-oblong. 
Side-plates not deep, 1 widened beluw. Postero-inferior angle of 
3rd _ pleon segment quadrate, not produced, }osterior margin with 
4—5 widely spaced and very slight serrations. Telson, lobes oblong, 
apically truncate. 
First antenna reaching well beyond peduncle of 2nd antenna, 
Ist joint equal to 2nd and 3rd together, flagellum longer than 
peduncle, 13-jointed. 
Second antenna equal to half length of body, ultimate and penul- 
timate joints subequal, flagellum longer than peduncle, 24-jointed. 
First gnathopod ¢, 2nd joint scarcely expanded on front apex, 
3rd not expanded, lobe of 5th broad and apical, setose along whole 
margin, 6th wider distally than proximally, palm a little oblique, 
setose, 2 defining spines, hind margin with a group of setae shortly 
before apex. 
Second gnathopod ¢, 2nd joint with a narrow apical expansion, 
3rd not lobed, 6th oval, palm oblique, convex, spinose, equal to hind 
margin and defined by a small blunt projection bearing I| spine, finger 
matching palm. 
In 2 gnathopods similar to one another and to Ist gnathopod of 
¢, but 2nd joint in both gnathopods with a narrow apical lobe. 
First and second peraeopods, hind margin of 6th joint with 
3 groups of 1 spine and 2 setae each, apex with 1 short spine and 
2-3 setae, finger with short stout spine (not seta) on inner apex 
(if finger and unguis be counted together the spine is in middle of 
inner margin). 
Third to fifth peraeopods, hind margin of 2nd joint setulose and 
serrate, faintly on 8rd and 4th peraeopods, more strongly on 5th, hind 
margin of 4th with 8 solitary small spines, anterior margin of 6th with 
4 pairs of spinules and a fairly stout but not very prominent apical 
spine, hind margin of 6th smooth in 3rd peraeopod, with 4 (4th 
peraeopod) or 3 (5th peraeopod) groups of 3 unequal spines and an 
apical tuft of setae, finger with fairly stout seta, inner margin quite 
smooth. 
First uropod with marginal spines on both rami. 
Third uropod, ramus shorter than peduncle. 
Length : 9 mm. 
Colour: Pale pinkish, eyes black. 
Locality : Inyack Island, Delagoa Bay. October, 1912. (K.H.B.) 
16 
