190 DR. G. S. BKADY ON NEW OR 



Family HALOCYPRIDiE Claus. 

 Genus Conch(ecia Dana. 



CONCIICECU SPINIROSTRIS Claus. 



Conchcecia spinirosiris Claus, Die Halocypriden des atlantischen Oceans uud Mittelmeeres, p. 5G, 

 pi. i. figs. 1-12. 



A few specimens of both sexes from lat. 26° 15' N., long. 29° 56' W. ; lat. 22° 20' N., 

 long. 27° 0' W. ; " Patellaria Syd overfladen " (Pacific), surface-net (females only). 



CONCHCECIA STRIATA Claus. 

 Conchacia striata Claus, loc. cit. p. 62, pi. viii. figs. 1-6. 

 Taken in lat. 22° 55' N., long. 29° 19' W. 



Genus Euconchcecia G. W. Miiller. 



Shell as in Conchoecia : groups of glands placed symmetrically at the postero-dorsal 

 angles of the valves; frontal tentacle long, slender, and unjointed; antennule with 

 three nearly equally long joints, the second of which is without setee, while the third 

 (coalescent third and fourth) instead of two sensory filaments bears a brush of about 

 twenty setee; last joint short, bearing one short and two long setse, none of which 

 are toothed. Secondary branch of the antenna with a slightly dilated basal joint, 

 without papillary processes and with slender setse ; the three setae of the last joint not 

 of a sensory kind, but attached to the knee-like angle of the claw are two shorter setae. 

 Masticatory-plate of the mandible without setse, the teeth numerous, short and stout. 

 Last joint of the penultimate limb bearing setse which are as long as the limb itself. 

 Antennule of the female short, simple, two-jointed, bearing a terminal brush of setse 

 similar to that of the male. 



This generic definition, so far as it applies to the male, is adapted from G. W. Miiller 

 {loc. cit.). 



The only species is 



Euconchcecia chierchi^ G. W. Miiller. (Plate XXIV. figs. 9-15.) 



Euconchcecia chierchice G. W. Miiller, loc. cit. p. 277, pi. xsviii. figs. 1-10. 



Shell, seen from the side, subquadrangular, elongated ; twice as long as broad 

 (fig. 9), produced in front into a prominent, curved beak, beneath w^hich is a large 

 sinus ; posterior extremity subtruncate, rounded-off ventrally, and produced into a 

 short spine (right valve only) dorsally ; dorsal margin almost straight, or only slightly 

 sinuated, ventral boldly arcuate. Length of the male 1"1 mm. ; of the female '85 mm. 



