Eurystheus 615 



Gnathopod 2 ia cT (Fig. 107) little longer but much broader than gnathopod 1 ; 

 2*^ Joint attached close to lower margin of side-plate, widely expanded, some- 

 what narrowed distally; 5*^ short, cup-shaped; 6**» large, longer than broad, 

 widening to the oblique palm, which is defiued by a pretty strong tooth, whence 

 it has a straight slope tili near the finger-hinge; finger seiTate, sti'ongly curved, 

 closing on to the surface without reaching defining tooth of palm. Gnatho- 

 pod 2 in 9, 2*1 Joint broad, but not abnormally so, palm defined by a small 

 acute tooth, the oblique margin finely pectinate, not irregulär. Peraeopods 1 

 and 2 not very stout. Peraeopods 3 — 5, 2^ Joint not greatly expanded, narrowed 

 distally; peraeopod 5 the longest. üropod 1, peduncle longer than rami. üropod 2, 

 rami very unequal, peduncle longer than the outer, scarcely so long as the inner, 

 üropod 3, peduncle longer than the nan'ow subequal rami. Telson shorter 

 than peduncle of üropod 3, longer than broad, subtriangular, with a spine 

 near centre of each side, the margin below on each side funy with scale- 

 like spinules. L. 10 mm. 



Southern Indian Ocean (Kerguelen Island). 



8. E. hirsutus Giles 1887 E.h., G. M. Giles in: J. Asiat. Soc. ßengal, u 56 

 p.227 t. 8 i 1888 Gammaropsis h., T. Stebbing in: Rep. Voy. Challenger, v.29 p. 1643 | 

 1893 Protomedeia maculata (part.)?, A. Della Valle in: F. Fl. Neapel, v.20 p.439. 



Pleon Segment 3 dorsally longer than any other segment. Head, lateral 

 "lobes blunt. Side-plates all (in figure) exceedingly shallow, 5^^ — 7*^ almost 

 transversely linear (not mentioned in text). Eyes rather small, red brown. 

 Antenna 1 rather more than ^l„ as long as body; 3^ Joint (in figure) scarcely 

 so long as 1^*, 2^ longer than 1^*; flagellum shorter than peduncle, 11-jointed; 

 accessory flagellum with 4 short joints. Antenna 2 a little shorter, ultimate 

 Joint of peduncle slightly shorter than penultimate, slightly longer than the 

 7-jointed flagellum. Gnathopod 1, 6*^ Joint oval, nearly as long as 5*^; 

 finger weakly serrate. Gnathopod 2, 2* Joint not expanded, 5*^ cup-shaped, 

 6**1 rather broadly oval, palm oblique, defined by a little tooth and having 

 a small median one; finger feebly serrate, curved. Peraeopods 1 and 2, 

 2^ Joint a little expanded, narrowly oval; peraeopod 1 rather the longer and 

 stouter. Peraeopods 3 — 5, 2* Joint greatly expanded; peraeopod 5 the longest, 

 4*^ much longer than S^. üropod 3 very short, rami not much longer 

 than peduncle. Telson a short compressed lamina armed with a number of 

 short tooth-like spines like those on the m-opods. Colour, nearly transparent 

 with a few patches of reddish brown. L. 4 mm. 



Bay of Bengal. Surface. 



9. E. dentifer (Hasw.) 1879 Moera dentifera, Haswell in: P. Linn. Soc. N. S. 

 Wales, V.4: p. 332 t. 20 f . 4 ! 1884 Paranaenia typica + P. d', Chilton in: Tr. N. Zealand 

 Inst., ul6 p.259 t. 19 f . 1 (cj juv.?); p. 260 t. 21 f. 2 | 1893 P. d. (pari), Protomedeia 

 (part.)?, A. Della Valle in: F. Fl. Neapel, v. 20 p. 441 | 1899 Gammaropsis d., T. Stebbing 

 in: Ann. nat. Hist., ser. 7 u3 p. 350. 



Head, lateral corners acute. Side-plate 3 in c? produced forward rather 

 acutely under the 2^, the long lower margin having a series of elliptical 

 markings or pellucid Spaces. Pleon segment 3, postero-lateral corners quadrate 

 with minutely produced point. Antenna 1, 3^ Joint equal to 1^*, shorter than 2*^; 

 flagellum shorter than peduncle, reaching 13 joints; accessory flagellum with 

 5 or 6 long joints. Antenna 2, ultimate and penultimate joints of peduncle 

 subequal; flagellum 13-jointed. Gnathopod 1 small, 5**^ Joint rather longer 



