34 CAkL liOVALLIUS, Ai\U'Htl'01M HVJ'KKI1J)EA. 



?,. LANCEOLA SERRATA, (". BOVALLIUS, 1885. 



1'1. v, lig. 2— VA. 



DiagU. Corjiii.s uon (•ai-inatuni, intewumento reticulato. Caprit rostnim niiniiiuim obtusum gerens. 

 Ocuti parvi, rotundati. Segmeutiim primum et septimum ■pereii brevissima, segnientum 

 quartum longissimum, segnienta tria iiltima segmento quarto inulto longiora. Pedes pereii 

 primi paris metacarpo gracili, elongato, longiore quani latiore. Pedes quarti paris pedibiis 

 ([uiiiti pari.s breviores. Pedes septimi paris pedibiis quarti paris multo breviores. Pedes 

 sexti paris qiiani pereion longiores. Segmenta pJei in dorso serrata. Pedes nri elongati. 

 Tehon pedunciilo iiltinii paris pediim uri brevius, acuminatum. 



The liodij is not keeled, the integument is reticulated. The head is provided with a verv 

 small, obtiise rostrum. The eyes are small, rounded. The first and seventh segments of 

 the pereion are the shortest, the fourth the longest; the last three segments are much 

 longer than the fourth. The first pair of jiereiopoda have au elongated narrow metacarpus, 

 much longer than broad. The fourth pair are shorter than the fifth. The sixtli pair are 

 longer than the pereion. The seventh pair are much shorter than the fourth pair. The 

 pleonal segments are dorsally serrated. The uropoda are elongated. The telson is pointed, 

 shorter than the peduncle of the last pair of uropoda. 



Colour. Ilyaline. 



Leugth. :58 mm. 



Hab. The mouth of Davis strait. (D. M.). 



Syu. 1885. Lanceola serrata, C. BOVALLIUS. »Oii some forgotten genera among the Amphipodous 



Crustacea». Bih. t. K. Sv. Vet. Ak. Handl. Bd 10. 

 N:o 14, p. 7. 

 ') ■ » » 1887 . "Arctic and Antarctic Hyperids». Vega-Exp. Vetensk. 



Iakttagelser. Bd. 4, p. 554. 



In general habitu.s this species comes near Lanceola Sayana, but it i.s easily distinguished 

 by the serrated dovsal side of the pleon, the longer and raore slender legs, and the shorter 

 telson. Only the female is known. 



The head is three times deeper than long; the obtuse rostrum is scarcely halt' as 

 long as the rest (Ä the head. The head ^vith the rostriim is shorter than half tlie first 

 pereional segment. 



The eyes are placed just at the base of the first pair of antennas; they are almost 

 round and consist of abont 20 ocelli each. 



The firf:t pair of antennoe (Pl. V, fig. 3) are niore slender than in the preceding 

 species, as long as the head and the first pereional segment together. The first joint of the 

 peduncle is much longer than the two following together. The first joint of the flagellum is 

 very elongated, more than three times longer than the peduncle; the following joints are 

 three in number, the first is the longest, longer than the two preceding together (Pl. V, fig. 4). 



The seconcl pair of antennas (Pl. V, fig. 5) reach beyond the posterior margin of 

 the third pereional segment(?); the third peduneular joint is the longest, nmch longer 

 than the flagellum (5:3). 



