298 Paraeallioj)c, Harpinioides 



(contraiT to Haswell and Thomson) quite distingnisliable froni tlic flagelluni. 

 which is slender, about twice as long' as peduncle, 21-jointed. Anteuna 2 

 longer, ultimate and pcnultimate joints of peduncle subequal, flagellnm about 

 twice as long as peduncle, 24-jointed. Upper lip transverselv oblong, 

 with distal margin not strongly convex. Mandible. cutting edge and 

 accessorv plate slight in structure, spiue-row witb few spines, molar very 

 prominent, 3^ Joint of palp curved. spinöse, narrow at apex. Gnathopod 1. 

 5^1' Joint elongate triangulär but not very long. (>'•* with oblique palm. 

 Gnathopod 2 considerably stronger, lobe of 5*'' Joint fringed with slender 

 spines, 6*^^ broad at base, wideniug a little to the moderately oblique 

 palm, which on one margin is evenly concave, on the other sinuous and 

 spinöse, the rather strong finger closing down in the hoUow between 

 tlieni: the reversion of gnathopod 2. beginning at 5*^ Joint, recalls the 

 curious torsion in gnathopod 1 of Trischizostoma nicaeense (p. 13). Feraeo- 

 pods 1 — 5, 6*^1 Joint longer than either 4:^^ or 5*''. the 4^J'— 6*^ joints 

 spinöse, 2*^ Joint in peraeopods 3 — 5 expanded, bind margin little sen-ate. 

 l^eraeopod 5. (j*^ Joint elongate, but shorter than the long, stiliform, 

 spinöse finger. Uropod 1, rami shorter than peduncle, outer ramus little 

 sliorter than inner. Uropod 2, outer ramus much shorter than inner. Uropod 3, 

 peduncle rather elongate. Telson little longer than broad, of uniform widtli 

 to the smoothly rounded apex. Colour greyish, more or less marked with 

 dark spots. L. 5 mm. 



This species is not iiuprobably identieal with OecUcerus novi-zealandiae Dana 

 (p. 270), Avhicli Boeek, in 1861, includes into his gciuis Aceros (]i. 248). 



New Zealand. In fresli water, iii brackish or ncarly salt watcr. — Botany 

 Bay I East-Australiaj. 



10. Gen. Harpinioides 8tel>b. 



1888 Harjiinioides (Sp. un.: H. drepaiiocheir), T. Stebbing in: Rep. Voy.Challenger, 

 r.2i) p. 936 j 1890 Hurpinoides, Warburton in: Zool. liec, c.2ö Crust. p. 19. 



Back rounded. Head, rostrum obsolete. Side-plates 1 — 4 rather deep, 

 1^* somewhat expanded distally. Antenna 1 the longer, peduncle short, 

 accessory flagellum minute. Upper lip, distal margin broad. flat. liOwer 

 lip with inner lobes. Mandible, cutting edge very oblique, long, cut into 

 numerous dentides. accessory plate on left similar but shorter. on right 

 represented by a short prickly spine, 10 spines in spine-row. molar 

 sraall and slender, not denticulate. 2** Joint of palp dilated, 3^ equally 

 long, but uarrower. iMaxilla 1, inner plate with 1 seta. outer with 

 9 spines, mostly smooth, 2'' Joint of palp somewhat dilated. Maxilla 2, 

 inner plate shorter and narrower than outer, partially fringed ou inner 

 margin. Maxillipeds, inner and outer plates narrow, outer prolonged much 

 l)eyond inner, but not reaching end of pidp's 2^ Joint, fringed on inner 

 margin with slender spine-teeth, palp rather long, finger as long as 

 3'^ Joint. Gnathopods 1 and 2 similar. 5*'^ Joint short, 6^** long, tapering. 

 l'eraeopods 3 — 5. 2*^ Joint gi-eatly expanded. Uropods 1 and 2. outer 

 ramus the shorter: uropod 3, rami subequal, lanceolate. Telson almost 

 entire, feebly notched. 



1 species. 



I. H. drepanocheir Stebb. 1888 H. d.. T. Stebbing in: llep. Voy. Challenger^ 

 f. 29 p.937 t. 82 | 1893 Acanthmotosonta d., A. Delhi Valle in: F. FL Neapel, v.20 

 p. 677 t. r)9 f. 87. 



