'M) 



CAlfL BOVALLIUS, AMlMlITOJiA II Yl'EKIIUi;A. 



TIjo perelon; tlic lirst scgineiit is thcj sliortest, tlie hccoikI and lliird flie longcst, cqual. 

 The pereiopoda; tlie tirst pair are the shortest, tlie tliird, tburtli, and seveuth pairs 

 equal, the lifth longer, the sixth longer thaii the pereion. 

 Tlie i(,rus is depressed, three-jointed. 



The tirst two pairs of uropo(]a are equal in length, the last [)air rather shorter. 

 The telson is attenuated. 

 Only two speciinens were eaptured, both feniales. 



Diagti. 



Coloiir. 

 Length 



2. LANCEOLA SAYANA, C. BOVALLIUS, 1885. 



The name in honoiir of Thomas Say. 

 Pl. IV, fig. 1—19; Pl. V, fig. 1. 



Corjjus leviter carinatum, integuinento laterum prominente. Ca/mt rostrum acutum curvatum 

 gerens. OcuU parvi elongati ovati. Segmentum primum et septimum pereii brevissima, 

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

 Pedes pereii primi paris metacarpo crasso conico, latitudine longitudinem sequante. Pedes 

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

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

 Pedes uri breves, lati, robusti. Telson peduuculo 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 rostnun. 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 pleonal segments are not serrated dorsally. The iiropoda are short, 

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

 rated posteriorly, broad. 



Red. 



30—42 mm. 

 Hab. The North and South Atlantic 

 Syn 



D. M., S. M.). 



1885. Lanceola Sayana, C. BOVALLIUS. "Ou somu forgotten genera among the Ampliipodous Crusta- 



cea». Bih. t. K. Sv. Vet. Akad. HandL Bd. 10. N:o 14, p. 



Lanceola Sayana is one of the largest of all the anii)hipoda, easily distinguished 

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

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

 specimeiis from the Noi'th Atlantic, as ^veU 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, 

 Avhich is interrupted between the segments. 



