MALACOSTRACAN FAUNA OF THE MEDITERRANEAN. 299 
ALLORCHESTES AQUILINA (Costa). (Pl. 217. fig. 19.) 
= Amphithoé aquilina, Costa.  Hyale aquilina, Della Valle. 
St. lw. Several, male and female. 
The carpus of the 2nd gnathopods of the male is produced 
into a slender spur. This is not shown in Della Valle’s figure, 
and brings the species into the genus Allorchestes as defined by 
Stebbing (Trans. Linn. Soc. 2nd ser. vol. vii. pp. 8397/8). 
ALLORCHESTES PLUMICORNIS (Heller). (PI. 27. figs. 20, 21.) 
Nicea plumicornis, Heller. 
St. 1. Several ; males, females, and young. 
Tam glad to be able to confirm Mr. Stebbing’s opinion (1. e. 
pp- 412/3), that Heller mistook males for females. The second 
gnathopod in the female differs entirely from Heller’s figure. 
The lower antenne, however, are hairy in both sexes though less 
so in the female. This is one of several species wrongly united 
with Hyale Prevostii, M.-Edw., by Della Valle. 
Fam. LystaNAassiIp@. 
ORCHOMENE HUMILIS (Costa) = O. Batei, Sars. 
St. 38. One young. 
Fam. PontToPoREIID#. 
URoruHoi sp. 
St. 2H. One female, too young for identification. Length 
2 mm. 
Fam. PHOXOCEPHALIDS. 
Genus Merarnoxus, Bonnier, 
Camp. du Caudan, Aun. l'Université de Lyon, 1896, p. 630. 
This genus was founded by Bonnier for Metaphoxus typicus, 
a species which, as he says, is extremely near to Phoxocephalus 
pectinatus. The genus appears to be a natural one, and should 
I think include P. Fultonz, Scott. 
M. Furront (7. Scott) = Phorocephalus chelatus, Della Valle. 
St. 5, 2H. Several. 
M. peorinatus (A. O. Walker). (Pl. 27. fig. 22.) 
1896. Phoxocephalus simplex, Calman, Trans. Roy. Irish Acad. 
De) vole xxix, 
1900. P. simplex, Norman, Ann. & Mag. Nat. Hist. ser. 7 
vol. vy. p. 335. 
by) 
