TIE POSITION EXPLAINED 4.09 
have pleopods or rudiments cf them. The Phrywiens are 
considered to represent the stem out of which the other 
two divisions arise as branches. 
Phryxus, Rathke, 1845, is preoccupied, but MM. 
Giard and Bonnier retain it, though transferring Rathke’s 
Phryzus paguri to Athelyes. The male has the pleon fused 
and without appendages. 
Phryxus resupinatus (Miller), 1870, was found on a 
Pagurid from Brazil, generally in connection with Pelto- 
gaster purpureus and a Cryptoniscus already mentioned. 
Dr. Fraisse considers that the name resupinatus, meaning 
with the ventral side outwards, does not really refer to a 
specific peculiarity, but that the larva places itself under 
the Peltogaster, naturally with its ventral side towards it, 
and consequently with its dorsal side towards the Pagurid. 
When nothing of the Peltoguaster is left but its roots, the 
Bopyrid, having lost its original point of support, bends 
back its claws to clutch the abdomen of the hermit-crab.. 
That the parasites are not injured by the movement of the 
Pagurid within the mollusc shell is explained in this way. 
The hermit by its terminal appendages clings firmly to the 
twist of the shell, laying its ventral side close to the spindle 
of it. The parasites, however, uniformly sit on the le(t 
side of their host’s back, tolerably near the carapace, just 
where the eggs of the healthy female Pagurid are wont to 
be attached. 
Athelque, Hesse, 1861, isspoken of as Athelqus by Fritz 
Mier in 1870. <Athelges is the form generally used. It 
has a cylindrical pleon and flat laminar branchie. 
Athelque paguri (Rathke), 1843, on Lupagurus bern- 
hardus (Linn.). In describing this species under the 
name Phryzus paguri, Bate and Westwood suggest that 
Athelque fullode, Hesse, 1861, is a synonym. 
Athelque Prideauau, Giard and Bonnier, 1890, on 
Eupagurus Prideauvw (Leach). ‘This species is larger than 
the preceding, and the adult female retains a rudimentary 
fifth pair of appendages on the pleon, which are transitory 
in the former. 
Athelgue guitarra, Giard and Bonnier, 1890, on Pagurus 
Sp. 
P 30 
