Parapherusa crassipes (//aswell). 201 
and in some genera of the Corophiide. Moreover, the 
character described above is found only in the male; the 
female differs in that both rami of the uropod are more 
slender and bear simple sete of the ordinary type. 
It appears, therefore, that the characters which were 
thought to show resemblance to Hurystheus and the Coro- 
phiide are superficial only, and the position in which Stebbing 
has placed the species is probably the correct one, though the 
difficulty of arranging the genera of the family Gammaride 
according to their aflinities is, in the present state of our 
knowledge, very great. 
Genus PARAPHERUSA, Stebbing, 1906. 
Harmonia, Haswell, 1879 : a 
Chloris, Haswell, 1880, t preoccupied, 
As there is only one species at present known in this 
genus, the characters of the genus must be looked upon as 
provisional only. They are described by Stebbing as 
tollows :— 
“Side-plates shallow. Antenna 1 the shorter, accessory 
flagellum well developed. Mouth-parts normal. Mandible: 
second joint of palp as long as third, but stouter. Maxillal: 
inner plate with about ten long setee, outer with eleven spines ; 
second joint of palp with seven or eight spine-teeth. Maxilla 2, 
inner plate fringed on inner margin. Maxillipeds: inner 
and outer plates well armed. Gnathopods 1 and 2 sub- 
chelate, second much the larger in ¢, but notin 2. Perao- 
pods 8-5 very stout. Uropod 3 very short, rami equal, 
shorter than peduncle. ‘T'elson simple.” 
Parapherusa crassipes (Haswell). 
(Pls. VIII.-X. tigs. 1-24.) 
Harmonia crassipes, Haswell, 1879, Proc. Linn. Soe. N.S.W. vol. iv. 
pp. 3380, 349, pl. xix. fig. 3; Haswell, 1882, Cat. Australian Crus- 
tacea, p. 251; Haswell, 1885, Proc. Linn. Soc. N.S.W. vol. x. p. 106, 
pl. xvi. fig. 9; Chilton, 1888, Trans. N.Z. Inst. vol. xv. p. 82, pl. ii. 
fig, 5; Della Valle, 1888, Fauna und Flora des Golfes yon Neapel, 
vol. xx. p. 442. 
Parapherusa crasstpes, Stebbing, 1906, Das Tierreich, vol. xxi., Amphi- 
poda, p. 883; Stebbing, 1910, Austrahan Museum, Memoir 4, p, 641; 
Chilton, 1909, Subantarctic Islands of New Zealand, p. 6380. 
Chloris, Haswell, 1880, Ann. & Mag, Nat, Hist. ser. 5, vol. v. p. 33, 
Specific diagnosis.—Pleon-segments 5 and 6 very short. 
Eyes narrow, reniform., Antenna | about half the length of 
body and as long as antenna 2; flagellum longer than 
peduncle, accessory flagellum well developed. Antenna 2 
