Lepidepecreum 79 



peduDcle equal, each narrower and a little shorter than antepenultiraate; flagellum 

 withmany shortjoints, eachwith a calceolus. Epistome carinate with 2 successive 

 apices above, below dividing into two keels. Maxiila 1, outer plate apically 

 carrying 12 spines. Gnathopod 1, side-plate said to be almost as long as the 

 remainder of the appendage (but?), 5*^ and 6*^ joints equal, margins parallel, 

 palm small, well defined. Gnathopod 2 longer, veiy slender, ßth Joint in- 

 flated at the distal eud, which prolongs itself in a rounded lobe beyond the 

 tinger. Peraeopods land 2, 5*^ Joint shorter than 6*^ finger long. Peraeopod 5, 

 2*^ Joint broader and longer than in preceding peraeopods. üropods 1 and 2 with 

 few spines on the rami; uropod 3, outer ramus 2-joiuted, fringed in ö, not in 9 , 

 with long setae on inner margin, inner ramus carrying 3 spines and 2 setae. 

 Telson long, deeply cleft, with a pair of apical spinules. L. about 6 mm. 

 Bay of Biscay. Depth 650—950 m. 



2. L. foraminiferum Stebb. 1888 L. f., T. Stebbing in: Rep. Voy. Challenger, 

 «.29 p. 686 t. 24 | 1893 Anonyx longicornis (part.), A. Della Valle in: F. Fl. Neapel, 

 V.20 p.814. 



Carina extending from 2"^ Joint of antenna 1 to pleon segment 4, on 

 peraeon segments 6 and 7 and pleon segments 1 — 3 the ridge forming a small 

 distal tooth. Head slightly rostrate, lateral angles outdrawn into long 

 narrow lobes ending obtusely. ' Side-plate 5 with breadth and depth sub- 

 equal. Pleon segment 3, postero-lateral angles acute, slightly upturned, 

 Segment 4 forming a strong upturned carinal tooth. Eyes not perceived. 

 Antenna 1 in § , flagellum with 5 joints, 1^* not very large, accessory flagellum 

 2-jointed; in <5, flagellum with 6 joints, 1^* large, accessory flagellum 3-jointed, 

 slender. Antenna 2 in 9 , ultimate Joint of peduncle shorter than either of the 

 preceding, in d rather longer than either; flagellum in Q with 5 joints, in ö with 

 many. Epistome projecting. Gnathopod 1, 6*^ Joint nearly as long as 5*^^ of 

 uniform width, palm slightly concave and oblique. Gnathopod 2, 6*^ Joint more 

 than half length of 5***, both distally widened. Peraeopods 3—5, 2^ Joint 

 large, overlapping 3*^, in peraeopod 5 very large, much longer than rest of limb, 

 in peraeopods 3 — 5 4*^ Joint expanded. üropod 3, rami rather broad, outer the 

 longer, with setae also in . Telson cleft not quite to the centre, with 

 2 pairs of marginal spinules. L. 5 mm. 



Southern Indian Ocean (Kerguelen Island). Depth 230 m. 



3. L. elypeatum Chevreux 1888 L. c, Chevreux in: Bull. Soc. zool. France, 

 ü. 13 p.40 I 1893 Anonyx longicornis (part.). A. Della Valle in: F. Fl. Neapel, u20 p.814. 



5 . Carina as in L. umbo (p. 80). Head, lateral angles little produced, 

 acute. Side-plate 5 of equal breadth and depth. Pleon segment 3, postero- 

 lateral angles acute, carina of this and segment 4 produced into a sharp 

 strong tooth. Eyes inconspicuous. Antenna 1, P* Joint very stout, produced 

 over half length of 2\ Antenna 2 subequal to antenna 1, flagellum in 

 both Short, with long cilia. Gnathopod 1, 6*^ Joint a little longer than 

 o^\ palm oblique. Gnathopod 2, 6*^ Joint half length of 5*^, distally 

 dilated, angle of palm produced. Peraeopods 3 and 4, 2^ Joint expanded, 

 serrate on front margin, produced below 3^ Joint, 4*^ much dilated and 

 produced. Peraeopod 5, 2"^ Joint very large, produced almost to the end 

 of the 6*^ Joint. Telson very elongate, cleft to the base. L. 5 mm. — 

 d unknown. 



North-Atlantic (lat. 46» N.). Depth 180 m. 



