602 CRUSTACEA. 



geri, 6 antici didactyli, manubus parvulis, 4 postici filiformes, ciliati, non annu- 

 lati. Branchiae foliosse. Abdomen dorso uni-spinosum. — An hujus sedis est ? 



Fam. III. eucopidje. 



G. Eucopia, Dana. — Carapax non rostratus, fronte integro. Pedes thoraciei 

 elongato-palpigeri, palpis natatoriis. Maxillipedes 2di 3tii et pedes lmi mono- 

 dactyli et subprehensiles. 



SiCYONiA cakinata, Edwards. 

 Plate 40, fig. 1, animal, natural size. 

 Harbour of Rio Janeiro ; common. 



Length, three to four inches. Colour, olive-green clouded with 

 white; sides of abdominal segments with elevated parts whitish ; outer 

 caudal lamellae having a large bright smalt-blue spot ; thoracic legs, 

 flesh-red ; second antennae, with alternate bands of yellow or flesh-red 

 and dark brown, about ten oblong bands in all. Shell nearly calca- 

 reous. Beak very short and reflexed, bifid at tip, and having two 

 teeth a short distance from the apex ; also, on carina, two teeth near 

 middle of back, and one on posterior third. Thoracic legs quite 

 slender. 



Edwards, Ann. des Sci. Nat., xix. 344, pi. 9, f. 44 ; Crust., ii. 410. 



Penjeus CARINATUS. 



P. setifero affinis. Rostrum squama antennali parce longius, paulo 

 sinuosum, extremitate styliforme, parce recurvatum, apice vix altius 

 quam dorsum, supra 7-S-dentatum, infra 3-dentatum. Flagella an- 

 tennarum internarum articulis duobus precedentibus non longiora. 

 Pedes §ti 4tis non graciliores. 



Near P. seti/erus. Beak slightly longer than the basal scale of outer 

 antennae, somewhat sinuous, styliform at extremity, apex hardly 



