58 
It may be recalled that in Alcock’s classification this division 
includes two tribes, the Dromiidea and Homolidea, the Dromii- 
dea comprising three families, Homolodromiidae, Dromiidae, 
and Dynomenidae. 
Tribe DROMIIDEA. 
Fam. Dynomenidae. 
1892. Dynomenidae, Ortmann, Zool. Jahrb., Vol. VI., p. 541. 
1898. Dynomenidae, Ortmann, in Bronn’s Thierreich, Vol. V, 
Pt p kk55- 
1899. Dynomenidae, Alcock, Journ. Asiat. Soc. Bengal, Vol. 
LXVIIL; Pt 2.pp) 2374027. 
1899. Dynomeninae, A. M.-Edw. and Bouvier, Crust. Decap. de 
lHirondelle, fasc. 13, p. 9. 
1901. Dynomentdae, Alcock, Catal. Indian Decap. Crust., Pt. 1, 
PP. 31, 34; 74. 
To distinguish this family from the other eae Alcock gives 
the following marks :—‘“‘ Only the last pair of legs reduced in 
size and subdorsal. Lateral borders of carapace well defined. 
The appendages of the sixth abdominal somite are represented 
as in the Dromidae. Epipodites are present on the chelipeds 
and next two pairs of legs. According to A. Milne-Edwards 
and Bouvier the gill plumes are 20 on either side.” 
Gen. Dynomene, Latreille. 
1825. Dynomene, Latreille, in Desmarest, Consid. gén. Crust., 
pp. 133 (footnote), 442. 
1829. Dynomene, Latreille, Regne Animal, éd. 2, Vol. IV., p. 69- 
1901. Dynomene, Alcock, Catal. Indian Decap. Crust., Pt. 1, 
PP: 34, 74- 
In the work referred to Alcock supplies a full synonymy for 
the six species known to him at that time, namely, D. Mispida, 
Desmarest ; D. ursula, Stimpson; D. praedator, A. Milne- 
Edwards ; D. pugnatrix, de Man; D. filholi, Bouvier ; and D. 
pilumnoides, Alcock. He distinguishes the only two genera at 
present included in the family thus :— 
‘Carapace flattish, broader than long, pilose—Dynomene. 
Carapace convex, longer than broad, spinose—A cantho- 
dromia.” 
The species here added to Dynomene is therefore distinguished 
from the other species of that genus, and makes some approach 
to Acanthodromia, by the fact that its carapace is by no means 
flattish. 
