65 



length. Pereopods V are shorter than IV. Pereopods VI are shorter than 

 the pereon. The length ratios of pereopods V, VI, and VII are 1:1.1:0.9. 

 The rami of the uropods are broadly lanceolate. The telson is longer than 

 the basipodite of uropods III, and apically rounded. 



Notes: This species is close to L. sayana but differs from it primarily 

 in the shape of the distal segments of the flagellum of antennae I, the 

 presence of lobes on the 4th segment of the peduncle of antennae II and 

 much shorter pereopods V-VII. 



Distribution: Equatorial and southern regions of the tropical part of 

 the Pacific Ocean and Arabian Sea. It inhabits mostly surface waters but 

 also descends to deeper layers, being reported from catches at depths of 

 1,000-2,000 m. 



3. Lanceola felina Bovallius, 1885 (Figs. 6, 8) 



Bovallius, 1885b: 7; Vinogradov, 1960a: 204; Woltereck, 1909: 159 

 (var. longipes). — curticeps Bovallius, 1885b: 8. — (?) murrayi Norman, 

 1900: 135. 



Length of sexually mature individual (female) up to 33 mm. 



The integument is weakly faceted. The body has no keel. The head 

 has a short, slighdy bent, blunt rostrum. The eyes are relatively large, 

 oval, with crystalline cones, as in L. sayana. 



The 1st segment of the flagellum of antennae I is broad, with a 



bulging posterior margin; the distal segments are not fused; the apical 



segment is longer than the two preceding segments together, flat, with a 



57 rounded apex and bears two or three setae, of which one is very stout 



and much longer than all the distal segments together. 



The mandibles have a relatively broad cutting edge which is nev- 

 ertheless narrower than the mandibular body; the palp is larger than the 

 mandibular body. The lobes of maxillae II are equal in width. The outer 

 lobes of the maxillipeds are elongated-oval, the inner lobes small, as in 

 L. intermedia. 



The 5th segment of pereopods I is distally weakly broadened. The 

 spoon-shaped formation and retractile claws on pereopods V-VII are well 

 developed. Pereopods VI are relatively shorter than those in L. sayana, 

 equal in length to the pereon, or slightly longer or shorter than it. 



The uropods are short and broad. The telson is equal to the basipodite 

 of uropods III in length, or slightly shorter, equal to 3/4 its length. 



Notes: The form identified by Woltereck (1909) — L. felina 

 f. longipes — differs from the typical form in several of the usual variations 

 of characters (length of pereopods VI and telson). 



Bovallius (1885b, 1887b) in describing L. felina, neither considered 

 the structure of the mouthparts nor illustrated them. Pirlot (1935, 1939) 

 did not have access to the data on the structure of the mandibles of 

 this species and based on the presence of fairly large oval eyes and the 



