C A R I D E A. 579 



three median teeth smaller than the outer, extremity of lateral process 

 minutely setigerous. Some cf the setae of basal scale of outer an- 

 tennae in part jointed or annulate. 



ANCUISTIA LONGIMANA. 



Rostrum elongatum, acutum, basi angustum, tenue, supra 6-dentatum, 

 dente postico oculis posteriore. Antennce internee elongatce, articulw 

 basalibits 2do Stioqiie lonyissimis, apice 2di extremitatem rostri fere 

 attingente, 3tio dimidii rostri longitudine. Psdes 2di prcelongi, cequi, 

 brachio apicem rostri multo superante, carpo elongatd obconico, apice 

 inferru) spinigero, manu lonyd, angustd, digitis dimidio manus multo 

 brevioribus. 



Beak elongate, acute, narrow at base, slender, above six-dentate, last 

 of the teeth posterior to the line of the eyes. Inner antennas having 

 the base much elongate, second and third joints long and slender, 

 apex of second joint reaching nearly to extremity of beak, third 

 half as long as beak. Feet of second pair very long, equal, arm 

 extending farther forward than apex of beak, carpus long obconical, 

 inner apex with a spine, hand long and narrow, fingers shorter than 

 half the hand. 



Plate 37, fig. 6 a, head, with antennae, much enlarged; b, beak in 

 profile. 



Loc. ? 



Length, six to eight lines. Form, nearly like that of a Palaamon ; 

 but eyes more oblong, and inner antennae with but two flagella, besides 

 being peculiar in its long basal joints, the third reaching nearly its 

 whole length beyond the beak, although half as long as the beak, and 

 the whole base longer than basal scale of outer pair. Arm of second 

 pair of feet reaches nearly as far forward as the base of these antennas; 

 first pair of feet reach about to apex of carpus of second pair. Fingers 

 of hand of second pair about two-fifths as long as hand, and carpus 

 half as long as hand. Basal scale of outer antennae rather narrow. 

 Six posterior le-s very slender, and last pair, when thrown forward, 



