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segment of pereopods V-VII is hypertrophied. The gills are located on 

 pereopods IV-VI. 



Type species: Metalanceola chevreuxi Pirlot, 1931. 



1. Metalanceola chevreuxi Pirlot, 1931 (Figs. 27, 28) 



Pirlot, 1931: 1, 1939: 13; Vinogradov, 1960a: 210. 



Length of sexually mature specimens 7.5 to 8.0 mm. 



The body is lanceolate, with a thin integument, and without keels and 

 spines. The head is short and without a rostrum. The eyes are small, oval, 

 carmine-red in unfixed specimens, and not noticeable in fixed specimens. 



In antennae I the peduncle consists of short broad segments; the 

 proximal segment of the flagellum is conical, with a convex inner margin. 

 The segments of the peduncle and the proximal segment of the flagellum 

 are much wider in males than in females (ratio of maximum width of 

 proximal segment to its length in females 1: 3, in males 1: 2 or 1: 1.5). 

 Antennae II in females are only barely shorter but in males roughly half 

 the length of antennae I; the peduncular segments are short, so that the 

 length of the peduncle is equal to that of the flagellum. 



The mandibles have a broad cutting edge and the accessory plate is 

 reduced to a spinule; the palp is weakly armed and thin; its length is less 

 than twice the length of the mandibular body. The palp of maxillae I is 

 half as long as the outer lobe; the outer lobe has a straightly truncated 

 distal edge bearing three spinules (and five as in the genera of the family 

 Lanceolidae considered thus far); the inner lobe is narrowly oval. The 

 maxillipeds have an oval, weakly armed outer lobe and a very small, 

 tubercle-shaped inner lobe. 



Pereopods I and II are small, weakly armed; pereopods I have a 

 slightly broadened 2nd segment, a distally broadened, almost triangu- 

 lar 5th segment and a conical 6th which, unlike in other lanceolids, is 



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Fig. 27. Metalanceola chevreuxi Pirlot, male (after Pirlot, 1939). 



