CRUSTACEA. 7 



THORACOSTRACA. DECAPODA. 



PILUMNIDAE. 



Under stones in mud. 



Mass. — From Massachusetts Bay southward. 



R. I. 



Conn. 



16. Xeopanope texana sayi (Smith). 



Mud crab. 



Panopeus sayi Smith, Proc. Boston soc. nat. hist., 1869, vol. 

 12, p. 284. "New Haven, Conn. * * * Eastham, Cape Cod." 



Panoj)eus sayi Benedict & Rathbun, Proc. U. S. nat. mus., 

 1891, vol. 14, p. 363, pi. 22, fig. 4, \A. 23, figs. 7, 8. 



Under stones in mud. 



Mass. — From Provincetown southward. 



R. I. 



Conn. 



17. Hexapanopeus angustifrons (Benedict & Rathbun). 



Mud crab. 



Panopeus angustifrons Benedict & Rathbun, Proc. U. S. nat. 

 mus., 1891, vol. 14, p. 373, pi. 22, fig. 3, pi. 24, fig. 18. Vine- 

 yard Sound to Brazil. 



Mass. — Vineyard Sound ; Buzzards Bay. 

 R. I. — Xarragansett Bay. 



Co NX. — Off Milford, Stratford, Bridgeport, Norwalk ; on 

 oyster grounds. 



18. Rhithropanopeus harrisii (Gould). 



Pilumnus harrisii Gould, Invert. Mass., 1841, p. 326. "Cam- 

 bridge marshes; *** clinging to floating seaweed in 

 Charles River." 



Panopeus harrisii Benedict & Rathbun, Proc. U. S. nat. mus., 

 1891, vol. 14, p. 378, pi. 21, fig. 2, pi. 24, fig. 16. 



