PLATE 2. 
Fig. 1.— Cambarus immunis spinirostris Faxon. Young 9. Pontoosuc Lake, Lanesboro, Mass., Aug. 
1251900),  MCyZ,., Novt,36400 5 C38: 
Fig. 2.— Cambarus immunis spinirostris Faxon. @, form I. Pontoosue Lake, Lanesboro, Mass., Aug. 
12,1911. M.C.Z., No. 7,363. X 1. 
