Landy Fresh- Water, and Mai^iie Crustacea. 381 



Additional Note. — As the second part ol' this Cutalogue 

 was ready to go to press, I received a copy of an important 

 work on the Amphipoda Gammaridea by the Kev. T. R. E. 

 Stebbing, M.A., F.R.S., etc. This work, which has just been 

 published, forms the twenty-first of the series of Monographs 

 that are being issued under the general title Das Tierreich. 

 The Amphipoda are here divided into three legions, viz., the 

 Gammaridea, the Hyperiidea, and the Caprellidea, and it is 

 the first that forms the subject of Mr Stebbing's volume. 

 The number of known species belonging to the Gammaridea 

 as given in it is 1333. Of these, 1076 are " accepted species," 

 while the remaining 257 are regarded as doubtful. Their 

 classification differs to some extent from that of the Monograph 

 by G. 0. Sars. There are also a considerable number of 

 changes in the nomenclature, and I take the opportunity to 

 indicate the more important of these, so far as they concern 

 the species recorded in this Catalogue. 



In the work referred to — Talitrus loctista (Pall.) becomes 

 T. saltator (Mont.), and Orchestia littorea (Mont.) 0. gammarellus 

 (Pall.), while Hyale Nilssoni (Rathke) takes the name of 

 H. Py-evostii (M.-E.). The genus Callisoma, A. Costa, becomes 

 Scopelocheirus, Bate, and Orchomene humilis (A. Costa) becomes 

 0. Batei, O. Sars. Tryjyhosella, Bonnier, is replaced by Trypliosa^ 

 Boeck, but Tryphosa nana (Kroy.) becomes Orchomenella nanus 

 (Kroy.). Anonyx nugax (Phipps) becomes A. lagena, Kroy., and 

 the genus Tmetonyx, Stebb., replaces Hoj)lonijx, O. Sars. Phoxo- 

 cephalus Fidtoni, T. Scott, becomes Faraphoxus Fidtoni (T. S.), 

 Harpinia neglecta, O. Sars, becomes H. antennaria, Meinart, and 

 Amphilochoides serratipes (JSTorm.) resumes the name of A. Boeckii, 

 O. Sars. Metopa Briizelii (Goes) becomes M. sinuata, O. Sars, 

 and M. rohusta is restored to its place in the same genus. 

 Synchelidium hrevicarpum (B. & W.) becomes S. haplocheles 

 (Grube), and Halimedon parvimanus (B. & W.) Westwoodilla 

 ccecida, Bate. The genus Fara7nphitkoe, Bruz., becomes 

 Neop)leustes, Stebb., and Paratylus^ O. Sars, Nototropis^ A. Costa; 

 N. uncinatus, O. Sars, is also made a synonym to N. falcatus 

 (Metzg.). fyhimedia minuta, O. Sars, becomes Panoploea miniita 

 (0. Sars). The genus Amathilla, Bate, is replaced by Gammarella, 

 Herbst, and Gammaropsis, Lillj., by Eurystheues, Bate, while 

 Gammaropsis nana, O. Sars, becomes F. palmatus (Stebb. and 

 Rob.). Podoceropsis excavata (Bate) becomes P. nitida, Stimps., 

 Jassa Herdmani (A. 0. Walker) J. dentex (Czern.), and Jassa 

 pelagica, Leach, Parajassa pelagica{Lesich). Erichthonius ahdiius 

 (Tempi.) becomes E. brasiliensis (Dana), and Siphonoecetes Whitti 

 ((^^osse) E. Colletti, Boeck. 



