DECAPODA. 63 



an elbow, with the two filaments representing the stem, are mani- 

 festly shorter than their peduncle. That of the lateral antennae is 

 never provided with a lamina in the form of a scale. The two ante- 

 rior feet alone terminate in a didactyle hand, which is frequently 

 much flattened. The last segment of the tail is bilobate, at least in 

 most of them. 



At the head of this division come those whose(l) posterior feet 

 are much smaller and thinner than the preceding onesj they are fili- 

 form, bent up, and useless in locomotion. In the 



Galathea, Fab. 



The tail is extended, the thorax nearly ovoid or oblong, the medi- 

 ate antennae salient, and the forceps elongated. The superior sur- 

 face of the body is usually deeply incised or striate, spinous and ci- 

 liate. The most remarkable species of the European seas are the 

 Galaihea rugosa,Fa,h.; Leo, Rondel., Hist. des. Poiss., p. 390; 

 Penn. Brit. Zool., IV, xiii; Leach, Malac. Brit., XXIX, the 

 claws of which are long and cylindrical, the mandibles eden- 

 tate, and that has three long spines in the middle of the front, 

 directed forwards, and ten similar and equally projecting ones 

 on the tail, six on the second segment, and four on the follow- 

 ing one(2). 



Galathea strigosa; Cancer strigosus, L,, Herbst., XXVI, 2j 

 Pennt. Brit. Zool. IV, xiv| Leach, Malac. Brit., XXVIII, B. 

 Similar, as respects the mandibles, to the preceding species, but 

 having a projection in front, or a rostrum, with four teeth on 

 each side, and an eighth at the end^ the claws are large, but 

 neither very long nor linear, and very spinous, as is a great 

 part of the following feet. This last character distinguishes it 

 from a third species, also found in European seas, the Gatalhea 

 squamifera, Leach., Malac. Brit., XXVIII, B. 

 This learned entomologist has made a peculiar genus, Grimotea, 

 of the Galathea gregaria of Fabricius. The second joint of the in- 

 termediate antennae terminates in a club, and the three last external 

 foot-jaws are foliaceous. It is of a red colour, and was discovered by 

 Sir Joseph Banks in his voyage round the world. It collected in such 



(IJ According- to a verbal communication from Doctoi- Leach, in the Gaalthea 

 ampledens, Fab., it is not only the two posterior feet which are smaller, but the 

 penultimate likewise. Tiiis species would then form a separate g-enus. 



(2) This species forms the genus Munida, Leach. See Desmar., Consider., page 

 191. The latter is mistaken however in attributing to the former the credit of 

 having been the first to discover the identity of this species with the lion of llon- 

 delet. See my Hist. Gener. des Crust, et des Insectes., t. VI, p. 198. 



