DECAPODA (mACRURA). 
Crust. 28 
Conchodytes tridacnce (Peters, 1851) = Pontonia tridacnce (Dana, 1852), 
distinguished from Pontonia by the short external flagellum of the 
antennas ; Hilgcndorf, MB. Ak. Berl. 1878, p. 835. 
Anchistia americana^ sp. n., Kingsley, 1. c. p: 96, Key West, Florida. 
Paloemonetes paludosus (Gibbes, 1851, as Hippolyte) = exilip&s (Stimps.), 
id. 1. c. p. 97, fresh water of South Carolina. 
Palcemon (Fabr., Stimps.) = Macrohrachium (Bate), occurs both in 
salt and fresh water; list of North American species. Id. Bull. Esse.x 
Inst. X. pp. 66-68. 
Palcemon lepi\do'\dactylus, mosmmhicus, dolichodactylus^ and peterH, 
spp. nn., Hilgendorf, MB. Ak. Berl. 1878, pp. 837-841, pi. iv..figs. 14-19, 
the first, third, and fourth from Tette, in the interior of Mozambique, 
the second from Quillimane, on the coast. 
Palcemon \Leander) concinnus (Dana) ?, from Mozambique ; id. 1. c. 
p. 842. 
Palcemon {Leander) fluviatilis (Hutton, MS.), sp. n., Thomson, Tr. N. 
Z. Inst. xi. p. 231, pi. x. fig. a 2, Waikato and Taieri Rivers, New 
Zealand. 
Thor., g. n. Antennal spine ; rostrum short, toothed above ; antennulss 
biflagellate, outer branch very stout. Mandibles without palpi, bifurcate, 
apical process narrow, proximal process with one acute and one obtuse 
tooth, and a pubescence of minute curved hooks. Feet of the first pair 
short, stout ; of the second elongate, slender ; carpus five-annulate. T. 
floridanus, sp. n., Kingsley, P. Ac. Philad. 1878, p. 95, Key West, Florida. 
A special sub-family, Thorince, proposed for it ; id. Bull. Essex Inst. x. 
p. 64. 
Peneidah. 
\_Peneus] Penceus. The species in the collection of the British Museum 
enumerated and discussed. P. hardwickii., Indian Seas ?, dohsoni, Man- 
galore, spp. nn., described and figured, a synoptic table of, the 25 known 
species given ; Miers, P. Z. S. 1878, pp. 298-310, pi. xvii. figs. 1-3. 
Peneus caramote (Desm.). Larvfe found in the central cavity of Pyro- 
soma elegans (Leseur) and described ; P. Mayer, MT. zool. Stat. Neap i. 
pp. 49 & 50. 
Peneus semisulcatus (Haan) var. exsulcatus = ? monodon (Fabr.), Quilli- 
mane, Hilgendorf, MB. Ak. Berl. 1878, p. 843. 
Peneus hrevirostris^ sp. n., Kingsley, P. Ac. Philad. 1878, p. 98, Nica- 
ragua. 
Mangalura, g. n., proposed for Peneus dobsoni [see above], on the sup- 
position that the rudimentary condition of the fifth pair of legs exists in 
both sexes, but further researches prove that these legs are rudimentary 
only in the female and fully developed in the male. Miers, 1. c. p. 303. 
Aristeus edwardsianus, Johnson (as Peneus)., described apd the generic 
difference between Aristeus (Duvernoy, 1841), and Xiphopeneus (Smith), 
pointed out ; J. Miers, 1. c. pp. 308 & 309, pi. xvii. fig. 3. 
Funchalia woodwardi (Johnson, 1867). Note on its mandibles ; id. 1. c. 
p. 309. 
