CRUSTACEA. 515 
M.-Edw. 1. c. p. 80, pi. 19. figs. 13-16, Zanzibar. To this genus belongs also 
Gnlene natalcnsis (Kraiiss). 
. IHlumnopeus (Alph. INI.-Edw. Crust. Fossil.) maculatus, sp. n., Alpli, M.- 
Edw. 1. c. p. 82, pi. 19. figs. 17-19, Zanzibar. 
Goniosoma millerii, sp. n., Alpb. M.-Edw. 1. c. p. 54, pi. 18. figs. 1-3, Cape- 
Verde Islands. 
Cato ME TO PA. 
On the geographical distribution of the subgenera of Thclphmaj see 
Martens, Wiegm. Arch, xxxiv. p. 18. 
Thelplmsa ohesa, sp. n., Alph. M.-Edw. I, c. p. 86, pi. 20. figs. 1-4, Zan- 
zibar. [Very similar to Th. deprcssa^ Krauss.] 
TheJphusa hornecnsis, sp. n,. Martens, 1. c. p. 18, Western Borneo. — Cancer 
iherus (Giildenst.), from Tiflis, belongs to Thelpliusa, ibid. — Th. (Taratliel- 
plmsa) tridentata and sinensis (M.-Edw.), on their affinities, differences, and 
variations, Martens, ibid. pp. 19-22. — Tli. philippina^ transDersa, jagori, and 
2 ricta, spp. nn.. Martens, IMonatsber. Ak. Wiss. Berlin, 1868, pp. 608-611, the 
second from Cape Vork, tlie others from the Philippine Islands. 
Deckcmaj g. n. Efferent respiratory channels produced to the very edge of 
the forehead, as in the tribe Oxystomata\ inner antenme longitudinally 
situated j in all other respects resembling Thelphusa. D. imitatriv, sp. n., from 
Eastern Africa. Ililgendorf, Sitz. Ber. Gcsellsch. naturf, Freunde Berlin, 
1868, p. 2. 
Cardisoma carnifex (Ilerbst), Amboina, occurring within the town. 
Martens, Wiegm. Arch, xxxiv. p. 24. 
JJca cnnninglunni, sp. n., founded by Sp. Bate on a drawing by Dr. Robert 
Cunningham sent from Rio Janeiro. It does not show the maxillipeds, and 
therefore the genus cannot be determined with certainty. The species lives 
in streams and on damp rocks at Rio Janeiro. It is very remarkable that the 
female has been found carrying between fifty and sixty full-developed live 
young ones under the pleon in the ordinary place of the ova. Ann. & Mag. 
Nat. Hist. i. pp. 446 & 447, pi. 21. fig. 3. [The Recorder thinks that it is 
Trichodactylus quadratus, Lat.] 
LibysteSj g. n. Allied to Carcinoplax and Pseudoidiomhila. Cephalothorax 
thick, inflated, with entire edges ; basal joint of the outer antennae not reach- 
ing the front ; epistome broad, with a somewhat prominent ridge forming the 
expiratory channel ; outer maxillipeds short and broad, their third joint very 
much dilated on the outer side ; last joint of the last pair of legs compressed 
and ciliated on the edges. L. nitidus, sp. n., Alph. M.-Edw. Nouv. Arch. 
Mus. iv. p. 82, pi. 20. figs. 4-7, Zanzibar. 
Macrophthahnus grandidierij sp. n., Alph. M.-Edw. /. c. p. 84, pi. 20. figs. 
8-11, Zanzibar. 
Sesarma (Say). Some species in fresh water, but most in brackish water, 
in Eastern Asia. Martens, Wiegm. Arch, xxxiv. p. 22. — S. oblonga, sp. n.. 
Martens, Monatsberichte Berl. Alcad» Wiss. 1868, p. 64, Samar, Philippines. 
Eriochir (Ilaan) in fresh water of the Indian Archipelago- Martens, 
ibid. 
OXYSTOMA. 
Matida. On an apparatus for producing sound, see Ililgendorf, Sitzber. 
ntrf. Freund. Berlin, 1868, p. 2. 
