30 



CARL BOVALLIUS, AMPHIPODA HYPEKIIDEA. 



The pereion; the first segment is the shortest, the second and third the longest, equal. 

 The pereiopoda; the first pair are the shortest, the third, fourth, and seventh pairs 

 equal, the fifth longer, the sixth longer than the pereion. 

 The urus is depressed, three-jointed. 



The first two pairs of uropoda are equal in length, the last pair rather shorter. 

 The telson is attenuated. 

 Only two specimens were captured, both females. 



2. LANCEOLA SAYANA, C. BOVALLIUS, 1885. 



The name in honour of Thomas Say. 

 PI. IV, fig. 1 — 19; PI. V, fig. 1. 



Diugn. Corpus leviter carinatum, integumento laterum prominente. Caput rostrum acutum curvatum 

 gerens. Oeuli parvi elongati ovati. Segmentum primuin ct septiinum pereii brevissima, 

 segmentum quartum longissimum, segmenta tria ultima segmento quarto multo longiora. 

 Pedes pereii primi paris metacarpo erasso conico, latitudine longitudinem agquante. Pedes 

 quarti paris pedibus quinti paris multo breviores; pedes septimi paris pedibus quarti bre- 

 viores. Pedes sexti paris quam pereion paullo longiores. Segmenta plei non serrata. 

 Pedes uri breves, lati, robusti. Telson peduneulo ultimi paris pedum uri longius, latum, 

 post serratum. 



The body is feebly keeled dorsally, the integument of the sides prominent. The head is provided 

 with a curved, sharp rostrum. The eyes are small, elongate-ovate. The first and seventh 

 segments of the pereion are the shortest, the fourth is the longest; the last three segments 

 together are much longer than the fourth. The metacarpus of the first pair of pereiopoda 

 is thick, conical, as broad at the base as long. The fourth pair are much shorter than 

 the fifth. The sixth pair are a little longer than the pereion. The seventh pair are shorter 

 than the fourth. The phonal segments are not serrated dorsally. The uropoda are short, 

 broad, and stout. The telson is longer than the peduncle of the last pair of uropoda, ser- 

 rated posteriorly, broad. 



Red. 



Colour. 

 Length. 



30 — 42 mm. 



Hab. The North and South Atlantic. (D. M., S. M.). 



Syil. 1885. Lanceola Say ana, C. BOVALLIUS. »On some forgotten genera among the Amphipodous Crusta- 

 cea*. Bin. t. K. Sv. Vet. Akad. Handl. Bd. 10. N:o 14, p. 



Lanceola Say an a is one of the largest of all the amphipoda, easily distinguished 

 from its allies by the regular prominences of the integument of the sides of the pereion 

 and by the long broad telson. It seems to be the least rare of all the species. I have seen 

 specimens from the North Atlantic, as well as from the South Atlantic. 



The body is thick, swollen, a little more slender and elongate in the male than in 

 the female. The integument is thick, calcareous. The dorsal line forms an obtuse keel, 

 which is interrupted between the segments. 



