208 Eev. T. E.. R. Stebbing's Revision of Amphipoda. 



Fani. LencotlioidaB. 

 Paealeucothoe, gen. nov. 



First segment of pevteon longer than the second. First 

 maxillae with five seta-like spines on the outer plate, the palp 

 very large, but only one-jointed. The maxillipeds have the 

 inner plates broad and long, peculiarly constructed, so as to 

 sliow two apical margins, one flattened, the other compressed ; 

 the outer plates, though small, are not rudimentary. The 

 first gnathopods are chelate between the iifth and sixth joints, 

 the sixth having a truncate apex, grooved for the finger. The 

 second gnathopods are subchelate, the fifth joint not strongly 

 produced. Telson triangular, oval. 



The type species is Leucothoe novce-Jiollandice, Haswell. 

 For opportunities of examining this interesting form I have 

 to thank Professor Haswell and the Trustees of the Australian 

 Museum. 



Fam. (Ediceridse. 

 ExcEDiCEROS, gen. nov. 



Distinguished from (Ediceros, Kroyer, by having the 

 rostrum little pronounced, the eyes not contiguous though 

 ■well developed, the first antennae with a rudiment of an 

 accessory flngellum, the mandibles with well-developed molar 

 and the palp's second and third joints broad ; the first 

 maxillee with numerous setje fringing the iimer plate ; the 

 maxillipeds with the inner plates broad; the gnathopods with 

 the fifth joint at least as large as the sixth ; the first and 

 second per^opods without finger and the second uropods not 

 reaching back so far as the first or third. 



The type species is (Edicerus fossor^ Stimpson, if, as I 

 suppose, tliat species is the same as (Ediceros arenicola 

 {?/osso7'), Haswell. The latter has been kindly sent me by 

 the Trustees of the Australian Museum. 



Caeolobatea, gen. nov. 



Frontal process apically subacute, carrying the contiguous 

 eyes. Fourth pair of side-plates much deeper than the rest. 

 First antennse shorter than the second, flagella in both many- 

 jointed. Lower lip with the inner lobes separate. Mandibles 

 with molar rather weak, second joint of palp slightly curved. 

 Outer plate of first maxilla with nine spines. Second maxillse 

 with inner plate the broader. Maxillipeds with inner plates 

 small and outer plates not nearly reaching apex of the distally 



