146 Pontharpinia 



Synopsis of accepted species: 



Peraeopod 4, 4th joint as broad as 2d 1. P. pingms . . p. 14& 



Peraeopod 4, 4th joiiit narrower than 2d 2. P. rostrata . p. 14ft 



1. P. pinguis (Hasw.) 1880 Urothoe p., Hasweli in: P. Linn. Soc. N.S.Wales, 

 vA p. 825 1. 19 f. 2 I 1891 Harpinia? p., T. Stebbing in: Tr. zool. Soc. London, vASi 

 p. 4 I 1897 Pontharpinia p., T. Stebbing in: Tr. Linn. Soc. London, ser. 2 v.l p.33 t. 9b \ 

 ?1893 Urothoe irrostrata (part.), A. DellaValle in: F. Fl. Neapel, «;.20 p. 667. 



Lower margin of side-plates and of pleon segmeuts 1 — 3 more or 

 less Mnged with setae, pleon segment 3 serrulate above small produced 

 point of postero-lateral angles. Anteuua 1, flagellum in 5 9-jointed, accessoiy 

 flagellum 7-, flagellum in d 15-, accessoiy flagellum 10-jointed ; the joints apically 

 oblique. Antenna 2, flagellum in d 21-, in 9 10-jointed, the joints apically oblique. 

 Maxilla 1, outer plate with 11 spines. Gnathopods 1 and 2 in Q , 5^*1 Joint broadly 

 fusiform, 6*'' wideniug from base, then of uniform width to the transverse palm, 

 ^/g length of front margin strongly setose, finger in gnathopod 1 slightly over- 

 lapping palm, but not in gnathopod 2. Gnathopod 1 in d, 6^^ joiut a little louger 

 than 5*^^, palm not defined, finger half as long as 6**^ Joint; gnathopod 2, 

 ö*'^ Joint Short, 6*^ ovate, palm defined l)y a prominent angle, finger more than 

 half as long as 6*^ Joint. Peraeopods 3 and 4, 4^^ Joint squarish, bind margin 

 serrate, in peraeopod 4 deeply incised. Peraeopod 5, 2*^ Joint membranous- 

 looking. Uropod 1, rami slightly curved; uropod 2, rami shorter, straight; 

 m'opod 3, rami (at least in d) setose. Telson as broad as long, apices- 

 divergent, sides (in d) setose. L. 9 7*5, d 10 mm. 



South-Pacific (New South Wales). Gast on beach. 



2. P. rostrata (Dana) 1853 & 55 Urothoe rosiratus, J. D. Dana in: U. S. expL 

 Exp., vA3u p. 921; t. 62 f. 5a— p | 1876 Phoxus r., A. Boeck, Skand. Arkt. Ainphip., 

 u2 p. 214 j 1880 P. hatei, Hasweli in: P. Linn. Soc. N.S. Wales, vA p. 259 t. 9 f. 3 j 

 1888 Phoxocephalus b. -)- P. rostratus, T. Stebbing in: Rep. Voy. (3hallenger, v. 2ft 

 p. 1717 I 1893 P.?b.-\- P.? r., A. DellaValle in: F. Fl. Neapel, v. 20 p. 743, 744. 



Hood long, straight, obtuse. Side-plate 1 distally expanded, with a 

 few setae (not mentioned or flgured by Dana) on lower bind corner of 1^* 

 to 4*^; 4*^ broad, a little narrowed distally, bind excavation shallow. Pleon 

 Segment 3, postero-lateral angles squarely rounded, with setae on bind margin 

 above the angle. Eyes round (Dana), long-oval (Hasweli), subrotund, large, 

 conspicuous. Antenna 1, 1^* Joint about as long as 2^ and 3*^ combined, flagellum 

 10 — 13 joints, accessory flagellum % as long as primary, 6 — 10-jointed. 

 Antenna 2, in 9 rather, in d much longer than antenna 1, penultimate joint 

 of peduncle in 9 with numerous stout spines, in d (Dana) towards apex furnished 

 withstoutreversed setae, flagellum in 9 scarcely longer than peduncle, 13-jointed, 

 d (Dana) with 15 long slender joints caiTying calceoli. Upper lip broadly 

 rounded. Mandible, cutting edge sharply tridentate, spine-row of about 6 spines^ 

 molar veiy small, palp long and slender, 2*^ joint longest, a little curved, 

 3*^ with setae on obliquely ti'uncate apex. Maxilla 1, inner plate oval, with 

 a few apical setae, outer plate with 9 spines, palp long, 2-jointed, the short 

 1^* Joint faintly distinct. Maxilla 2, plates broad, subequal, inner with 4 spines 

 on distal half of inner margin. Maxillipeds, outer plates scarcely reaching 

 beyond 1^* joint of palp, with 5 slender spines on inner margin, 2*^ joint 

 of palp elongate, 3'^ with apex reaching a little beyond Insertion of finger^ 

 finger not longer than 3*^ joint unless by inclusion of its apical spine. Gnatho- 

 pods 1 and 2 similar, 2^ rather larger than 1^*, 6*^ joint broader than 5*^, but 

 scarcely ifat all longer, oblong, palm setulose, curved, somewhat oblique, defined 



