208 
CRUSTACEA. 
variety of it. 2. A. pachypus (Rathke, 1837) = caspius (Eichwald, 
1838), mouths of the rivers Bug, Dniester and Volga. 3. A. flu- 
viatilis (Rondelet) in the rivers tributary to the Baltic. 
h. Rostrum without lateral tooth near the tip; upper flagellum of 
the inner antennaa distinctly serrated ; males with a hook at the 
third joint of the second and third pairs of thoracic feet, first pair 
of abdominal feet tvyo-jointed, forming a closed tube at the tip. 
4. yl. ctericas (Pall.), upper course of the Amoor and its tribu- 
taries. 5. A. schrenchiy sp. n., lower course of the Amoor. 
It is probable that A. leptodactylas has been supplanted in the rivers 
tributary to the Baltic, where it still lives at some localities, by the stronger- 
handed A. Jluviatilis, and this may in future occur in the Dnieper, 
where A. fluviatilis is becoming acclimatized. A Crayfish from 
Hakodadi, probably A. japonicus (De Haan), is described. Bull. Mosc. 
xlviii. pp. 343-372. 
Cambarus sp. : a few notes on the Crayfish at Milwaukee, Wisconsin 
(some of them red during life), by T. A. Bruhin, Zool. Cart. xv. pp. 
396 & 397. 
Homarus vulgaris ; on its development, see above, p. 201. 
Nephropsis stewarti (Mason ; see Zool. Rec. x. p. 189) copied by Milne- 
Edwards, Ann. Sci. Nat. (5) xix. art. 7, pi. xx. figs. 1-3. 
Astacus zaleucus, sp. n., from the West Indian Seas, in a depth of 
450 fathoms, without eyes, (Willemoes-Suhm, MS.) Wyvillo Thomson, 
Nature, viii. [1873] p. 246, with woodcut, and J. Zool. iii. p. 130. Milne- 
Edwards thinks it to be a new genus of 2'halassinidce ; Ann. Sci. Nat. (5) 
xix. art. 7, pi. xx. fig. 4, copy. 
ThALASSINIDAiI. 
Axia serratifrons, sp. n., A. Milne-Edwards, J. Mus. Godelfr. iv. 
(1873) p. 87, pi. ii. fig. 6, Sandwich and Samoa Islands. 
Glypturus, g. n. Caudal lamellae deeply sculptured, outer lamella of 
the lateral appendages of the tail composed of two pieces soldered 
together, terminal median segment very small. G. acanthochirus, sp. n., 
Florida Keys. Stimpson, P. Ac. Chic. i. [1866] p. 46, and Ann. N. Lyc. N. 
York, X. p. 121. 
CallichiruSj g. n. Carpus and hand of the greater cheliped very long ; 
inner lamellae of the lateral appendages of the tail almost styliform ; 
terminal median segment short and broad, contracted at the base, emar- 
ginated at the extremity. Type, CaUianassa major (Say), Southern 
States and Florida. Id. 1. c. p. 47, and Ann. Lyc. N. York, x. p. 122. 
Alpheidj:. 
Alpheus latifrons, sp. n., A. Milne-Edwards, 1. c. p. 87, Upolu. 
PALiEMONIDJJ. 
Palcemon mayottensis, Mayotte and Nossy-Faly, near Madagascar, 
