1879.] NATURAL SCIENCES OF PHILADELPHIA. 403 



Prof. Webster collected specimens at Beaufort, N. C, Key West, 

 and Sarasota Bay, Fla. Other localities are Antilles (Auct.), 

 Pensacola, Tortugas, and Key West (Stm.), Charleston, S. C. 

 (Gibbes), Cuba (Martens), Bermudas (Goode), Guadeloupe (Des- 

 borne). Mr. Faxon tells me he has taken specimens at Newport, 

 R.I. 



Family MATUTIDiE. 



Genus HEPATUS Latreille. 

 Hepatus decorus Gibbes. 



Cancer decorus Harbst, op. cit., p. 154, pi. xxxvii. f. 6. 

 Hepatus decorus Gibbes, Proc. Am. Assoc, iii. p. 183. 

 Hepatus vanbenedeni Herklots, Bidjr. tot de Dierkunde, I. p. 35, pi. 

 1, f. 1 (1852). 



Specimens were collected at Beaufort, N. C, Charlotte Harbor, 

 Marcou Pass, and Sarasota Bay, Fla. Dr. Stimpson suggests a 

 comparison of the young of this species with H. tuberculatum 

 Saussure, but, on examination, the difference is as great as in the 

 adult. 



Family LEUCOSIDiE. 



Sub-Family Iliinae. 



Genus PERSEPHONE. 

 Persephone punctata Stm. 



Cancer punctata Brown, Natural History of Jamaica, pi. 42, f. 3. 

 Persephone latreillei et P. la mar ck ii L each, Zool. Mis., iii. p. 22. 

 Ouaia punctata Edw., Hist. Crust., ii. p. 127. 

 Persephone guaia Bell, Trans. Linn. Soc'y* xx. p. 292. 

 Persephone punctata Stm., Ann. N. Y. Lye, vii. p. 70. 



Beaufort, N. C, Sarasota and Florida Bays, Fla. 



Sub-Family Ebaliinae. 



Genus LITHADIA. 

 Lithadia cariosa Stm. 



Lithadia cariosa Stm., Ann. Lye, vii. p. 238. 

 Beaufort, N. C, Harbor Key, Fla., and Sarasota Ba}', Florida. 

 The Floridan forms have a less irregular carapax, but otherwise 

 I can detect no difference. 



Lithadia lacunosa, sp. n. 



Carapax convex, with small circular depressions, similar in 

 form and appearance to those on a lady's thimble. Closely re- 



