MALACOSTRACA, 
Crust. 25 
Gebitt 8ini8oni f Tasmania, p. 49, pi. i, figg. 3-5, Thomson, P. Soc. Tas- 
mania, 1893, n. sp. 
Gebiopsis darwinii , Miers, and intermedia , De Man, are identical; Hender- 
son, Tr. Linn. Soc. London, v, p. 432. 
(3) Astacidea . 
Eryontidj;. 
Eryonicus spinulosns , West coast Central America, p. 198, Faxon, Bull. 
Mus. Harvard, xxiv, n. sp. 
Polycheles tanneri , p. 196, granulatus } p. 197, West coast Central America, 
Faxon, Bull. Mus. Harvard, xxiv, n. sp. 
P. sculptus , Smith, pacificus , n. subsp., West coast Central America, 
p. 196 ; Faxon, Bull. Mus. Harvard, xxiv. 
Willemcesia inornata , West coast Central America, p. 195, Faxon, Bull. 
Mus. Harvard, xxiv, n. sp. 
Nephropsid^:, Potamobiida 3, and Parastacidj:. 
On grounds of expediency, Stebbing proposes the new family name 
Nephropsidce, for Nephrops, Nepliropsis , &c., and Astacus ; for Astacus 
is the true generic term for the species recently included under 
Iiomarus ; and the species commonly regarded as constituting Asta- 
cus must be called Potamobia, from which is derived the family name 
Potamobiidce. 
Cambarus pellucidus testii, Mayfield Cave (Indiana), p. 285, pis. xliv & 
xlv, Hay, P. U. S. Mus., xvi, n. subsp. 
Nephropsis occidentalism West coast Central America, p. 195, Faxon, 
Bull. Mus. Harvard, xxiv, n. sp. 
Parastacus : notes upon ; Jhering, Congr. Internat. Zool. 1893, pi. ii, 
pp. 43-49. 
(4) Penseidea . 
Penasidjc. 
Aristceus occidentalism West coast Central America, p. 215, Faxon, Bull. 
Mus. Harvard, xxiv, n. sp. 
Benthesicymus tatineriy West coast Central America, p. 215, Faxon, Bull. 
Mus. Harvard, xxiv, n. sp. 
llaliporus nereus, p. 213, doris , thetis, p. 214, West coast Central America, 
Faxon, Bull. Mus. Harvard, xxiv, n. spp. 
Ilemipenceus triton , West coast Central America, p. 215, Faxon, Bull. 
Mus. Harvard, xxiv, n. sp. 
Peneopsis diomedece, West coast Central America, p. 212, Faxon, Bull. 
Mus. Harvard, xxiv, n. sp. 
