() DEOAPODA. 



PEOSOPON, H. V. Meyer, 1835. 



Prosopon,ll. \. Meyer, Jahrb. f. Miner. 183o ; H. Woodw. 1868, Geol. 

 Mag. vol. V. p. 3. 

 Distribution. Great Oolite. 



Prosopon mammillatum, H. Woodw. 1868. Great Oolite, Stonesfield. 

 Prosupon inmnmillntum, II. Woodw. 1868, Geol. Mag. vol. v. p. 3, pi. i. fig. 2. 



KHACHIOSOMA, H. Woodw. 1870. 

 Rhiichiosuma, II. Woodw. 1870, Quart. Joiim. Geol. Soc. vol. xxvii. p. 91. 

 Distribution. Lower Eocene. 



EhacMosoma bispinosa, H. Woodw. 1870. Lower Eocene, Portsmouth. 



Rluichiosoma bispinosa, H. Woodw. 1870, Quart. Journ. Geol. Soc. 1871, vol. 

 x.wii. pi. iv. fig. 3, p. 91 ; ibid. 1873, vol. xxix. pi. i. figs. 1-6, p. 26. 



Khachiosoma echinata, H. Woodw. 1870. Lower Eocene, Portsmoutli. 



Rhuchiosuma echinata, 11. Woodw. 1870, Quart. Journ. Geol. Soc. 1871, vol. 

 xxvii. pi. iv. fig. 0, p. 92. 



TEACHYNOTUS, Bell, 1862. 

 Trachynotus, Bell, 1862, Mon. Pal. Soc. pt. 2, p. 2. 

 Distribution. Upper Greensand. 



Trachynotus sulcatus, Bell. Upper Greensaud, Wiltshire. 



Trachi/notMS sulcatu.s,~iiell, Mon. Pal. Soc. pt. 2, Crustacea, 1862, p. 2, pi. i. fig. 1. 



XANTHILITES, Bell, 1857. 

 Xanthllites, Bell, 1857, Mon. Pal. Soc. pt. 1, p. 17. 

 Distribution. London Clay. 



Xanthllites Bowerbankii, Boll. London C!lay, Isle of Sheppey. 



Xanthilites lioiverbunkii, Bell, Crustacea of London Clay, Mon. Pal. Soc. 1857, 

 p. 17, pi. ii. figs. 2-6. 



XANTHOPSIS, M'Coy, 1849. 



Xanthopsis, M'Coy, 1849, Ann. & Mag. Nat. Hist. 2nd ser. vol. iv. p. 163 ; 

 Desmarest, Crust. Foss. p. 95; Bell, 1859, Mon. Pal. Soc. p. 14. 

 Distribution. Eocene. 



Xanthopsis Leachii, sp., Desmarest. London Clay, Sheppey ; Alum Bay, 



Isle of \Mght. 

 Cancer Leacldi, Desmarest, Crust. Foss. p. 95, t. viii. figs. 5, 6. 

 Xanthopsis nodosa, M'Coy, 1849, Ann. Nat. Hist. 2nd ser. vol. iv. p. 103; 

 Bell, Foss. Crust. Mon. Pal. Soc. 1857, pt. 1, p. 14, pi. i. figs. U4. 



Xanthopsis unispinosa, M-Coy. Loudon Clay, Sheppey, Highgate, &c. 



Xanthopsia unispinosa, M'Coy, 1849, Ann. Nat. Hist, 2nd ser. vol. iv. p. 164 ; 

 Bell, Mon. Pal. Soc. 1867, Crustacea, pt. 1, pi. ii. fig. 1, p. 16. 



