160 Peltocoxa, Paracyproidea 



]. P. marioni Catta 1875 P.m., Catta in: Rev. Sei. nat., ».4 p. 161 i 1885 

 Cyproidia (lamnoniensis, T. Stebbing in: Ann. nat. Hist., ser. 5 f. 15 p. 59 t. 2 j 1893 

 Feltocoxa d. -\- P. marionis, A. Della Valle in: F. Fl. Neapel, t\20 p.648 t.30 f. 19— 82; 

 t. 60 f. 11, 12; p.648. 



Head, rostrum small. Side-plates and angles of pleon segmeut 3 as in 

 Stegoplax longirostris (p. 159). Kyes small, round, about 20 components, pigment 

 red. Antenua 1, P* Joint as long as 2*^ and 8*^ combined. flagellum witb 4 joints, 

 1^* rauch the longest, with long band-like filaments, accessory flagellum minute, 

 1-jointed. Antenna 2, ultimate and penultimate joints of peduncle subequal, 

 flagellum 4-jointed, tapering. Mandible, palp of very delicate structure or wanting. 

 Maxiila 1, inner plate weak, unarmed or wanting; outer plate probably armed with 

 7 spines, palp rather long, though but l-jointed. Gnatliopod 1, 5*^ Joint slightly 

 produced, 6*^ narrow. without distinct palm, with spinules on the hinder raargin, 

 finger denticulate on inner margin. Gnathopod 2 similar to gnathopod 1, except 

 that the 6*^ Joint widens distally to a distinct convex palm defined by a 

 tooth and spinules. Peraeopods 1 — 3 slender, peraeopod 3 with the 4 terminal 

 joints shorter than in peraeopods 1 and 2. Peraeopod 4, 2*^ Joint with bind 

 margin of expansion uniformly curved. Peraeopod 5, expansion of 2* Joint 

 subquadrate, produced broadly below the 3^. Uropod 1 , rami equal, uropods 2 

 and 3. rami a little unequal. Uropod 3 smaller than uropod 2, peduncle shorter 

 than the serrate rami. Telson triangulär, boat-shaped, reaching apex of shorter 

 ramus of uropod 3. Colour greyish with many red spots or red and purple. 

 L. 2*5 mm. 



English Channel (South-Devon), Firth of Clyde, Firth of Forth, Liverpool Ray, 

 Oulf of Naples. 



P. brevirostris (T. & A. Scott) 1893 Cyproidia? b., T. & A. Scott in: Ann. 

 nat. Hist., ser. 6 r. 12 p. 244 t. 13 | 1895 C. b., A. 0. Walker in: P. Liverp. biol. Soc, 

 V. 9 p. 300. 



In agreenieiit with P. marioni, yet without accessory flagellum to antenna 1, 

 palp of mandible rather longer, finger of gnathopods 1 and 2 not denticulate, side- 

 plates 6 and 7 almost entirely concealed, and 2d Joint of peraeopod 5 with acutely produced 

 lower hind corner. L. about 1*5 mm. 



Moray Firth. Depth 73 m, from Filograna filograna (L.) [F. hnplexa Berkeley]. 



9. Gen. Paracyproidea Stebb. 



1880 Cyproidia (part.), Haswell in: P. Linn. Soc. K S.Wales, u4 p. 320 | 1899 

 Paracyproidea (Sp. typ.: Cyproidea lineata), T. Stebbing in: Ann. nat. Hist., ser. 7 i;.4 p.207. 



Like Cyproidea (p. 157) in general, but mandible with well developed 

 molar, maxillipeds with apex of inner plates transverse not oblique; gnatho- 

 pods 1 and 2 much more slender, rather feebly subchelate, gnathopod 1 having 

 the 4**^ Joint produced along the 5*^ as in Aora, gnathopod 2 with the 5*^ 

 Joint produced. üropods 1 — 3 with rami subequal, much shorter than peduncle, 

 1^* and 2<^ reaching only a little beyoud 3'\ telson entire, very large, 

 strongly compressed, extending back almost to extremity of uropods. 



1 species. 



1. P. lineata (Hasw.) 1880 Cyproidia l, Haswell in: P. Liun. Soc. X. S.Wales, 

 r. 4 j). 321 t. 18 f. 2 I 1899 Cyproidea l., Paracyproidea sp. typ., T. Stebbing in: Ann. 

 nat. Hist., ser. 7 v. 4 p. 207. 



Head, rostrum very small. Pleon segments 5 and 6 very short, 6*^ not 

 dorsally produced. Side-plates as in Cyproidea ornata (p. 158), but 7*^ perhaps a 



