STALK-EYED CRUSTACEA 



3"3 



and granulations on the longitudinal lines of the walking 

 legs. — {P. stn'atus.) 



B. The legs are spiny, and the lateral borders of the 

 cephalo-thorax have spines in front. — {P. insignis.) 



C. The hands have above a row of strong spines, and 

 are covered in the rest of their extent with tubercles 

 which have each a semicircle of short hairs. — {P. 

 grajiulatus.) 



I. Pagurus striatus. 



Pagunis striatus . Latreille, Olivier, Risso, Desmarest, 

 Roux, H. Milne Edwards, Costa, 

 Lucas, De Haan, Stimpson, 

 Henderson, Heller, Miers, A. 

 Milne Edwards and Bouvier. 



Pagti rus stria tus\ 



vdiV. petersii \ A. Milne Edwards. 



A niailus peter sii j 



Pagurus strigosus . Bosc. 



Cancer arrosor . . Herbst. 



Pagurus incisiis . Latreille, Lamarck. 



The left pincer, the strongest, is covered on the out- 

 side with transverse grooves, and has short hairs and 

 granulations. These granulations become spines on the 

 superior part of the hand ; the fingers are very massive, 

 enlarged at their base, terminating in a horny, black 

 extremity, are ornamented in the same way as the hand ; 

 the movable finger has above near its joint a deep 

 longitudinal depression. The forearm has piliferous 

 grooves and small spines. The legs of the second and 

 third pair are strong ; they are longer than the pincers ; 

 numbers of grooves surmounted with granulations exist 

 on the legs. The finger has above many longitudinal 

 ranges of large tubercles separated by hairy surfaces, 



