Leucothoe 165 



with irregulär outline, finger large. Telson very short, uot twice as long 

 as broad, ending only subacutely. Colour pearl-grey, a little interspersed 

 with gree'bish-yellow, with flecks of crimson on the sides and smaller ones 

 ou the back. L. 3 — 4 mra. 



^ Gulf of Naples. Depth 10 — 12 m, in sand. 



3. L. miersi Stebb. 1888 L. m., T. Stebbing in : Rep. Voy. Challenger, v. 29 

 p. 772 t. 46 I 1893 L. spinicarpa (pari.), A. DellaValle in: F. Fl. Neapel, u 20 p. 652. 



Nearly allied to L. spinicarpa. Side-plate 3 tending to oblong. Antenna 1, 

 flagellum longer than 2*^ and 3'^joints of peduncle combined, 17 — 21-jointed, 

 accessory flagellum rudimentary, 1-jointed. Antenna 2, ultimate Joint of peduncle 

 rauch more than half leugth of penultimate, flagellum 12-jointed. Mandible 

 with accessory plate on both mandibles multidenticulate, that ou the right 

 much the smaller, spine-row of about 30 spines, 3*^ Joint of palp only about 

 % length of 2*^. Gnathopod 1, inner margin of process of 5*^ Joint minutely 

 tuberculate. Gnathopod 2, palmar margin serrate more and more deeply as 

 it approaches the finger hinge, close to which the serration is miuute. 

 Peraeopods 3 — 5, oval 2*^ Joint almost imperceptibly serrate on bind margin. 

 üropod 3, rami little more than half as long as peduncle. Telson thrice 

 as long as broad, tapering gi'adually tili near the acute apex, then more 

 rapidly. L. 12 mm. 



Southern Indian Ocean (Cape Agulhas). Depth 274 m. 



4. L. furina (Sav.) 1816 Lycesta f., Savigny, Mem. An. s. Vert., v. 1 p. 109 

 t. 4 f. 2 I 1826 L.f., Audouin in: Descr. Egypte, tJ.liv p.92; Crust. t.U f.2 | 1855 

 Leucothoe f., W. Liljeborg in: Öfv. Ak. Förh., i'. 12 p. 128 | 1857 L. procera, Bäte in: 

 Ann. nat. Hist., ser. 2 v. 19 p. 146 | 1893 L. spinicarpa (part.), A. DellaValle in: F. Fl. 

 Neapel, v. 20 p. 652. 



Pleon Segment 3, postero-lateral angles slightly rounded, almost quadrate. 

 Eyes irregularly oval. Antenna 1, 1^* and 2*^ joints long, subequal, 3*^ fully 

 Vs length of 2^, flagellum 8-jointed. Antenna 2, ultimate Joint of peduncle not 

 much shorter than penultimate, flagellum 4-jointed. Gnathopod 2, 5*^ Joint 

 apically much widened and emarginate, 6*'^ strikingly narrowed to the finger- 

 hinge, near to which it has a small shai*p notch and a deeper one in the 

 almost sti-aight palm margin. L. 8 mm. 



Mediterranean (Egypt), North-Sea (Banff). 



5. L. spinicarpa (Abildg.) 1789 Gammarus spinicarpus, Abildgaard in: O. F. 

 Müller, Zool. Dan., ed. 3 i'.3 p.66 1. 119 f. 1—4 | 1793 Cancer (Gammarelhis) s., J.F.W. 

 Herbst. Naturg. Krabben Krebse, v. 2 p. 135 t. 36 f. 6, 7 | 1861 Gammarus s., Leucothoe 

 articulosa, A. Boeck in: Forh. Skand. Naturf., Mede 8 p. 654 \ 1892 L. spinicarpa, L. a. 

 (err.), G. 0. Sars, Crust. Norway, v. 1 p. 283 t. 100; t. 101 f . 1 | ?1893 L. s. (part.), 

 A. DellaValle in: F. Fl. Neapel, ».20 p. 652 t. 6 f. 4; 1. 19 f. 1—20 I 1804 Cancer 

 articulosus, Monta^ru in: Tr. Linn. Soc. London, v.l p. 70 L6 f. 6 j 1812 Astaais a., 

 Pennant, Brit. Zool., ed. 5 u4 p.36 | 1813/14 Leucothoe articulosa, Leach in: Edinb. 

 Enc, v.l p.403 j 1818 Gammarus articulosus, Lamarck, Hist. An. s. Vert., v.5 p. 181 | 

 1838 G. a., „Leucothoe" (part.)?, H. Milne Edwards in: Lamarck, Hist. An. s.Vert., 

 ed. 2 u 5 p. 311 I 1826 Leucothoe articulata (err.), Audouin in: Descr. Egypte, u liv 

 p. 92 I ?1851 L. denticulata, A. Costa, Fauna Reg. Napoli, fasc. April 1851 t. 9 f. 3. 



Body slender, back broadly rounded. Side-plate 1 somewhat expanded 

 distally, front corner transversely truncate, 2'^ broader than deep, 3*^ tending 

 to semicircular, 4*^ with lower fi-ont angle rounded and upper bind one a 

 little blunted. Pleon segment 3, postero-lateral corners quadrate, with 

 minutely produced point. Eyes oval, bright red. Antenna 1 scarcely Vs length 



