386 CRUSTACEA [October, 



2. T. grilius* Inferior antenna with about twenty- 

 five articulations in the terminal joint; hand oval, palm 

 parallel with the thumb. 



TaUtrus grillus. Pedibus decem; anticis apice incras- 

 satis, chelatis. Latr, Hist, Nat. Crust, et Ins. from 



Inhabits sandy beaches. 



Cabinet of the Academy. 



Eyes suborbicular or a little angulated; superior an- 

 tenn^e hardly exceeding the second peduncular joint of the 

 inferior ones; inferior antennae much shorter than the bo- 

 dy, a little hairy but not rugose upon the third peduncu- 

 lar joint, terminal joint composed of about twenty-five 

 articulations; anterior pair of feet with a prominent ob- 

 tuse tubercle on the antipenultimate joint, penultimate 

 joint dilated into an obtuse tubercle at the inner tip to 

 receive the thumb; hand of the second pair of feet oval, 

 dilated, palm oblique, unarmed, convex so as to receive 

 the thumb without an interval, as long as the lower edge 

 of the hand. 



Female, articulations in the terminal joint of the anten- 

 nae the same as in the maley the second pair of feet are like 

 those of the female of the preceding species. 



Length rather more than half an inch. 



Found in great abundance on the sandy beaches; when 

 alarmed will sieze a portion of its food and skip with it 

 towards its hole in the sand; it will not voluntarily ven- 

 ture into the water. I have considered this as the T. 

 grillus of Bosc, notwithstanding the characters Vv^hich he 

 refers to that species, " dix pattes, le deux premier ter- 

 min('es par une main oval a crochet simple." I do not 

 know of any animal that will correspond with these 



