52 
Panulirus fasciatus. 
The striped Crayfish. 
Antennal¥plate;armed with four large spines fornia! a 
square. Abdomen smooth. | 
Length up to 12 inches. 
Reddish-brown with cream-coloured lines and _ stripes, 
arranged lengthwise on the carapace and legs, crosswise on 
the abdomen, bases of long antennae mottled with cream and 
dark red. 
Natal and Indian Ocean. 
Famity 3.—SCYLLARIDAE. 
The members of this family are not true Crayfish, but are 
closely allied. They possess the same distinguishing char- 
acters as the last family, but are at once separated by the 
broad and flattened carapace, with deep sockets for the eyes, 
and the short plate-like antennae (feelers). 
The family is represented in most parts of the world, and 
the larger species are highly esteemed as an article for human 
consumption. Three species live in South African waters, 
one of which is of economic value. 
GENUS SCYLLARIDES. 
Carapace longer than broad. Eye-sockets midway between 
the middle line and the outer angles of the carapace. 
Scyllarides elizabethae, 
The Port Elizabeth Crayfish. 
(Figured in Annals S.A. Museum, Vol. 6, pl. 30.) 
This large species is peculiar to South Africa, inhabiting the 
Agulhas Bank in 20-60 fathoms. 
Bright red, with a greyish tinge in places, the antennae 
edged with yellowish white, legs cream coloured with three 
purple bands. 
It reaches a length of 9 inches (excluding the plate-like 
antennae). 
GENUS THENUS. 
Carapace broader than long. Eye-sockets at the extreme 
outer angles of the carapace. 
Thenus orientalis, 
This is a smaller form easily recognised by the position of 
the eyes. 
Length, 7-8 inches. 
Reddish-brown. 
Natal and Indian Ocean. 
