118 PERCY SLADEN TRUST EXPEDITION 



having a broad, perfectly distinct peduncle, which carries two little cylindric branches, 

 slenderly drawn out (effilees) at their free extremity, and almost equal. In the new 

 species these branches are of equal breadth all along. The uropods of the male are a 

 broad oval, closely adjacent, extending beyond the sixth pleon segment, each nearly 

 equalling it in size. 



Locality. The species was obtained from the left branchial cavity of Actcea polya- 

 cantha (Heller), at the Salomon Isles, and forwarded to me, with subsequent determination 

 of the host, by the distinguished carcinologist, Miss Mary J. Rathbun, after whom I have 

 the pleasure of naming it. The male was lying transversely across the end of the pleon. 



EXPLANATION OF THE PLATES. 



Plate 5. 



Kalliapseudes makrothrix, n. g. and sp. 



n.8. Line indicating length of specimen figured below. 



G. V., a.s. Ventral view of head (distal margin) supporting the first antennas and one of the second 



antennae. 

 a.i. Second antenna. 

 Per. s. 7., prp. 5., PL, urp. Dorsal view of fifth perseon segment and the pleon, with fifth peraopod 



and the uropods in position. 

 m., m., mx. 1., mx. 2., mxp., mxp. The mandibles (much broken), the first and second maxillae (not 



very distinctly seen), the maxillipeds (detached one from the other). 

 gn. 1., gn. 2., pips. 2, 3, 4, 5. First and second gnathopods, second, third, fourth, and fifth perasopods. 



The fingers of all but the first gnathopods and some spines and setae are separately given 



on the same scale of enlargement as the mouth-organs, which is higher than that of the 



other detail figures. 



pip. 1. First pleopod. 



Plate 6. 



A. Jcunira crosslandi, Stebbing. 



n.s. J. Line indicating actual length of male specimen figured below in lateral view (L), and in 



dorsal view, minus the head (D). 

 a.s., a.i., a.i. juv. First and second antennae with higher magnification, only the first four joints 



of second antennae from the adult, but this appendage complete from the marsupial young. 

 l.s., l.i. Upper and lower lips. 



m., m., mx. 1., mx. 2, mxp. The mandibles, first and second maxillae, and maxillipeds (in part). 

 gn. 1., gn. 2., prp. 5. First and second gnathopods and fifth perasopods, to the same scale as the 



antennae. 

 pips. 1, 2, 3. First, second, and third pleopods of the male, on the same scale of magnification as 



the mouth-organs, higher than that of the gnathopods. 

 operc. %. Opercular plate (first pleopods) of female, to the same scale as dorsal view of the male. 

 ■urp. Uropod of marsupial young, to the same scale as separate gnathopods of male. 



B. Parapseudes hirsidus, n. sp. 



n.s. Line indicating length of specimen in curvature as in the lateral view below. 



G.V., a.s., a.i. Ventral view of head with first perseon segment, the eyes and one each of the first 



and second antennas in position. 

 Pi, urp. Dorsal view of pleon and part of seventh peraeon segment ; uropods in position, outer 



branch on right imperfect. 



