338 Annals of the South African Museum. 



below, presuming that the mouth-parts, which are as yet unknown, 

 are like those of the typical A. gracilis. 



Haswell's other species, HaHophasma purpurea, 1880, also from 

 Australia, is easily distinguished by the 3 longitudinal ridges on the 

 telsou ; the true systematic position of this species is also still 

 uncertain. 



ANTHURA LJNGUICAUDA n. sp. 



Male. Body narrow, smooth. Head longer than broad, with 

 minute median point. Eyes well developed. Peraeon segments 

 nearly flat dorsally, rounded ventrally, 1-5 subequal, 6 and 7 sub- 

 equal and shorter than the others, 4-6 each with a rounded pit. 



Pleon segments 1-5 together nearly equal to peraeou segments 6 

 and 7, sutures distinct. Telson ovate, tapering to a narrowly rounded 

 apex, sparsely fringed with simple setae. 



Antenna 1. 1st joint slightly the largest, 2nd and 3rd subequal, 

 flagellum extending to end of 3rd peraeou segment, ca. 22-jointed, with 

 dense whorls of long setae. 



Antenna 2, 2nd joint largest, grooved, 3rd-5th joints increasing in 

 length, flagellum a little longer than 5th, 4-joiuted, sparsely setose. 



Mandible, 1st and 3rd joints of palp subequal. 



Maxilliped, 3rd joint slightly narrower than 2nd, showing at about 

 ^ of its length from the base a distinct transverse suture, indicating 

 a coalesced joint. Apex of terminal joint truncate and slightly 

 emargiuate, with 5-6 setae. Epipod half length of 2nd joint, oval. 



Peraeopod 1 stout, 5th joint with apex bluntly projecting, 6th 

 broadly ovate, palm convex at base, excavate distally, setose, finger 

 plus uuguis impinging against apex of 5th, inner margin with 2 

 small lobes. 



Peraeopods 2 and 3 moderately stout, 5th joint underridiug 6th, 6th 

 equal to 3rd, parallel-sided, inferior margin setose. 



Peraeopods 4-7 similar, but 5th joint not uuderridiug 6th ; peraeopod 

 7 not shorter or more slender than the preceding ones. 



Pleopod 1, outer ramus not indurated, inner ramus not much smaller 

 than outer. 



Pleopod 2, inner margin of peduncle with 4 hooked setae, stylet 

 arising half way along inner margin of inner ramus, straight, apex 

 blunt, not reaching apex of ramus. 



Uropod, inner ramus nearly reaching telsonic apex, 2nd joint nearly 

 twice as long as broad, oval, fringed with long setae, outer ramus 

 not very widely separated from its fellow, ovate, outer distal margin 

 slightly concave, apex subacute, margin fringed with long setae. 



