124 Miscellaneous. 



pleopoda in the two sexes the sexual dimorphism affects the ros- 

 trum, which is more elongate in the male, and also the first pair of 

 thoracic feet of the male, Avhich attain a much greater development 

 than in the other sex ; sometimes the left, sometimes the right 

 chela presents the deformation characteristic of the male. 



This small species, which lives at depths of 10-50 fathoms, has 

 been noted on the Scandinavian, Danish, Dutch, and English shores 

 of the North Sea, in the Channel, in the Atlantic (England, France, 

 Madeira, Azores), and in the Mediterranean. 



2. Oalailiea squamifera, Leach ( = G. glabra, Risso, G. dirjiti- 

 distans, Sp. Bate). 



The first three ^xdrs of thoracic, feet are furnished luith e^npodites ', 

 carapace striated with numerous well-marked grooves furnished 

 with short hairs ; rostrum widened, armed with four pairs of lateral 

 teeth, of which the first three pairs are well developed, and the 

 posterior, at the inner angle of the orbital cavity, much reduced ; 

 two short spines upon the rostro-gastric groove ; basal joint of the 

 inner antenna with three anterior processes ; the iscliiopodite of the 

 third maxilliped shorter than the meropodite ; the inner branch of 

 the last three pleopoda in the male is biarticulate; thoracic feet of 

 the male of the same size as those of the female, and presenting in 

 the first pair the sexual deformation in both chelfc. 



A littoral species which has been noted in the Korth Sea and on 

 the English and French coasts of the Atlantic and Mediterranean. 



3. Galathea nexa, Embl. (non G. nexa, HeUer). 



The first three pairs of thoracic feet are furnished ivith epijjodites ; 

 carapace striated with grooves furnished with short hairs ; rostrum 

 with nine nearly equal teeth, one median and four lateral pairs, the 

 last pair smaller ; no spines on the rostro-gastric groove, which is 

 only undulated ; basal joint of inner antenna with three anterior 

 processes ; ischiopodite of the third nuuvilliped nearly equal to the 

 meropodite, which is armed with a single spine ; the first pair of 

 thoracic feet has the carpopodite and the propodite covered with 

 long close-set hairs ; the inner branch of the last three pairs of pleo- 

 poda of the male is biarticulate ; in the first pair of thoracic feet of 

 the male it is the left chela that is modified. 



A species from small depths which has been found in the North 

 Bea, on the Atlantic shores of England, and in the Channel, 



4. Galathea disjpersa, Sp. Bate ( = 6r. nexa, Heller). 



The first three pairs of thoracic feet are firnished with epiptodltes ; 

 carapace striated with grooves adorned with short hairs ; the ros- 

 trum has nine teeth, the median one longer than those of the four 



