82 
composed of two lengthened and narrow joints; palpi 
three-jointed, the first joint shortest. 
Legs ten; first pair jargest and didactyle, the three follow- 
ing pair simple, alike in form, and having their claws 
spiny within ; fifth pair monodactyle ; the claw and tibia 
being spiny within. 
Abdomen composed of seven joints. 
The two first joints only of the external antenne of 
this curious genus remain, we therefore are ignorant as to 
the form of those essential parts. 
Tas. LXXXVIII. HOMOLA SPINIFRONS. 
H. testA antice spinos4, lateribus antice spinulosis ; femo- 
ribus posticis interne trispinosis. 
Homola spinifrons. Leach, Trans. Linn. Sec. xi. 324. 
Habitat 
Mus. Britan. 
SPINY-FRONTED HOMOLA. 
Shell anteriorly spinose ; sides anteriorly beset with small 
spines ; hinder thighs internally with three spines. 
The only known specimen of H. spinifrons, (serving as 
the type of the genus), is preserved in the British Mu- 
seum, but we are ignorant of its locality. 
In the annexed plate the animal is represented of its 
natural size, together with one of the foot-palpes, one of 
the internal antennz, and the abdomen of the female. 
One of the anterior legs being lost, its supposed form is 
represented by a dotted line. 
