39 



Miers, 1884; the doubtful C. occidentalis. Bate, 1888; 

 C. iruncaia, Giard and Bonnier, 1 890 ; the very large 

 C. diademata, Ortmann, 1892; and in the same year 

 Ortmann's var. japonica of C.suhterranca (Montagu) ; the blind 

 C.caccigena, hXzoc^ and Anderson, 1894; C.novae-hritanniae, 

 Borradaile, 1899, from New Britain ; and C. Itgnicola, Alcock, 

 1899, "obtained from burrows in the interior of water-logged 

 mangrove-twigs." 



Callianassa Kraussi, n. sp: 



Plates, 2, 3. 



The rostral point is short, the lateral teeth represented 

 only by a faintly indicated angle on either side at some 

 distance from the centre. The first and second segments of 

 the pleon are membranous, rather indistinctly separated, the 

 third, fourth and fifth are subequal, each shorter than the 

 sixth, and each having on either side a tuft of hairs, and the 

 middle of the hind margin obtusely produced, the sixth is 

 distally narrowed, with a dorsal suture near the attachment 

 of the uropods. The eye-lobes are conti guous, obtusely 

 triangular, the eyes small. The first antennae are more than 

 half as long as the second, the first joint rather longer than 

 the eyelobes, the second longer than the first, the third than 

 both combined, the fringing setae of both second and third 

 very long, the lower flagellum 13-jointed, with long setae, 

 the upper 17-jointed, a very little shorter, thickest near the 

 end, with short setae. Second antennae much more slender, 

 with shorter peduncle, and flagellum of more than forty 

 joints. 



The subquadrate distal end of the mandible is fringed with 

 about 19 small unequal teeth ; the third joint of the palp is 

 longer than the second or the pentagonal first, and has a 

 dense row of short hooked spines on and near the truncate 

 apex. In the second maxillae the slender piece between the 

 four setose plates and the respiratory fan has a twist at the 

 apex which gives the appearance of an articulation. The 

 third maxillipeds have the first and second joints very small, 

 but the third abruptly broad at the rounded proximal end, 

 thence widening to the obliquely truncate distal margin 

 which nearly equals the length of the joint, and carries the 

 still wider but considerably shorter fourth joint; at the outer 

 extremity of the distal margin of this is attached the oval 

 fifth joint, as long as the fourth but less than half as wide ; 

 the sixth joint is rather shorter than the fifth, but wider, its 



