CYPROIDEA. 1291 



the Annals and Magazine of Natural History, 2d Ser., i. 21, and vii. 

 430; see also, Brit. Entomost. a p. 176. 



Cypridjna luteola. 



Cmnpresso-avoidea; latere visa, late elliptica, anticd breviter rostrata, 

 rostro ultra marginem testa? infer o-anticum non saliente, marginibus 

 aliis arcuatis, postico non gibboso; superne visa, angusto-ovata, antice 

 acuta, posticd rotundata. Digitus pedis mandibularis ad basin crassus, 

 sensim attenuatus. Antennas anticai ad apicem i-5-setigero3, setis an- 

 tenna non longioribus. 



Compressed ovoid ; in lateral view nearly oval, broad, front short ros- 

 trate, but not projecting beyond anterior margin of shell. The 

 margin elsewhere arcuate throughout, the posterior side not at all 

 gibbous; in an upper view, narrow ovate, acute in front, rounded 

 behind. Finger of mandibular foot quite stout at base and tapering 

 to apex. Setae at apex of the anterior antennae not longer than the 

 organ, four or five in number. 



Plate 91, fig. 1 a, side view of animal, enlarged; a', natural size ; b, 

 vertical view ; c, side view of animal, with the shell removed, enlarged 

 (d, eye ; e, anterior antenna ; /, second pair of antennae, the extremity 

 thrown back upon the basal portion; g, mandibular feet; 7i, buccal 

 mass, showing profile of processes ; i, first pair of maxillae ; Jc, second 

 pair of maxillae ; I, third pair of maxillae ; m, ovarian feet ; n, caudal 

 extremity) ; d, eye ; d' , lens of the eye ; e, anterior antenna ; /, part 

 of plume of posterior antennae ; g, part of mandibular foot, with man- 

 dibular process at g' ; h, buccal mass and organs, under view {g, man- 

 dibular feet ; i, first pair of maxillae ; h, second pair of maxillae ; I, third 

 pair of maxillae ; r, t, processes on the anterior pari of the buccal 

 mass, seen on figure 1 c, forming upper and under prominences of h; 

 s, fleshy process, the intermediate prominence on ch) ; i, first pair of 

 maxillae, same, with ci and hi; i', same, reversed ; Jc, second pair of 

 maxillae, same with ch and lik; I, third pair of maxillae, same with cl 

 and hi; m, extremity of ovarian feet; n, larger of caudal spines. 



Sooloo Sea, harbour of Soung; taken at 8 p. m., February, 1842. 



