APPEARANCES DECEPTIVE 137 
Family 2.—Homolide. 
The carapace is quadrangular or subtriangular. The 
eye-stalks are usually slender and very long, the orbits 
very incomplete. The first antenne are not retractile into 
special fossettes. ‘The last pair of legs are small, pre- 
hensile, subdorsal in position. 
The family may include five genera. ‘The species ex- 
tend to moderate depths. 
Dicranodromia, A. Milne-Edwards, 1880, is what is 
called an inosculant genus. By the character of the last 
two pairs of legs it should belong to the Dromide, but the 
defective orbits and the want of fossettes for the first 
antennz place it among the Homolide. 
Homéla, Leach, 1815, has the carapace quadrilateral, 
ot greater length than breadth. The eye-stalks have a 
long slender basal part and a shorter dilated corneal por- 
tion. The chelipeds are of moderate size, the three follow- 
ing pairs of limbs are long and flattened, while the last 
pair are short and subchelate. Homola barbata (Herbst) 
and Homola Cuvieri, Risso, occur in the Mediterranean 
and Atlantic. Homola erientalis, Henderson, is a Pacific 
species. 
Latreillia, Roux, 1828, has a triangular carapace. The 
eye-stalks are very long and slender, cylindrical, turned 
forwards, and divergent. The legs are slender and cylin- 
drical, the three middle pairs being very long. The four 
species belonging to this genus are apportioned two to 
Japan, one to Australia, and one, Latreillia elegans, Roux, 
to the Mediterranean and Atlantic. The figures in Plate V. 
represent the Japanese Latreillia valida of de Haan, from 
whose work they are copied on a reduced scale. At the 
first glance any one would be tempted to place the genus 
among the spider-crabs in the tribe Oxyrrhyncha, but 
de Haan showed the impropriety of this. ‘The same struc- 
ture,’ he says, ‘which prevails in Dromia and Homola is 
found in the species of Latreillia. They agree in the organs 
