Gex. : LuPA, Leach. 



1813. Liipa, Leach, Edinburgh Encyclopsedia, vol. 7, p. 390, 



Art. Crnstaceology. 

 1825- Lupa, Deamarest, Consid. gen. Crustaces, p. 97. 



1833. NeptiiHUS, de Haan, Crustacea Japonica, decas i, p. 7. 



1834. Lupca, Mihie-Edwards, tlist. Nat. Crust., vol. i, p- 445. 

 Date? Liipa. Milne-Edwards, Regne Animal Cuvier, Ed. Fortin 



and Masson, Crustaces, p. 46. 

 i886- Neptnnus, Miers, Challenger Brachyura, Reports, vol. 17, 



p. 172. 

 1897- PortunuS' Rathbun, Proc. Biol- Soc. Washington, vol- n, 



P- 155- 

 1900. Portunus, Rathbun. The American Naturalist, vol. 34, 



p. 140. 



Neptmuis, de Haan, is a subgenus of Portunus, Fabncuis. 



Neptnnus, Miers, is a subgenus of Neptnnus, de Haan. Portunus, 



Rathbun. is a subgenus of Portunus, Latreille. Jdiss Rathbun 



points out thai those who do not accept what she supposes to be 



Latreille's restriction of Portunus, Fabricius, must use Lupa in 



place of de Haan s Neptnnus, the latter being clearly a synonym 



of the former. Li the valuable key which Miss Rathbun supplies 



in 1900 to the families, genera, and species of the Cyclometopa, 



the character shown for distinguishing Callinectcs, Stimpson, from 



the genus Lupa of Leach is that in the former the pleon of the 



male is T-shaped, but in the latter triangular. . 



Lupa sanguinolenta, Herbst. 



1783. Cancer sanguinolentus, Herbst, vol. i, pts. 2-5, p. 161, pi. S, 



iigs. 56, 57. 

 1798. Portunus saiigniju>lentus. Fabricius, Supplementum Ent. 



Syst-. p. 367. 

 1833. Portunus {Neptnnus) sangniinvenfns, de Haan, Crust. 



Japonica, decas i. p. 8. 

 18,^4. Lupca sanguiJiolcnta, Milne-Edwards, Hist. Nat. Crust.,. 



vol. I, p. 451. ^, ,^ . , 



Date ? Lupa sanguinolenta, Milne-Edwards, Kegne x^nunal 



Cuvier, pi. 10, fig. i, i a-c. 

 1861. Neptnnus sangninoJentns, A. Milne-Edwards, Arch. Mus. 



Hist. Nat-, vol. 10, p. 319. 

 1886. Neptnnus (Neptunns) sanguinolentus, Miers, Challenger 



Brachyura. Reports, vol. 17, p. 174. 

 1899. Neptnnus sanguinolentus, Alcock, Journ. Asiat. Soc- 



Bengal, vol- 68, pt. 2, p. 32- 

 As Miers observes, the three large brightlly-coloured, equidis- 

 tant and irregularly oval spots on tlie hinder part of the carapace 



