420 THE VOYAGE OF H.M.S. CHALLENGER. 



fere xquanfes hisceque aniepositi, anmilo primo corporis a cciptite bene sejundo ; pedes 



maxWares haud articulati. [Mares fmminis minores.)" 

 The opinioa tliat Cyamns pacificus may perhaps better be classed as a variety of Cyamus hoopiis, 



"seems confirmed," Llitken says, "by the fact that young Cyami, taken upon unknown 



Cetacea, in the Pacific, near the Isles of Tonga and Earotonga, come extremely near to 



the species parasitic on the Merjaptera of the northern seas, and are probably identical 



-ivith it." 

 In addition to the ten well-defined species of the above list, Liitken calls attention to various 



others less well-known. These are : — 

 \. The species which, according to Bennett, are parasitic on the Cachalot and several Delpldni 



and Globiocephali (plusieurs Dauphins et Globiocephales) of the southern seas. The 



parasite of the Cachalot, he notes, may possibly be Cyamus pacificus, though Roussel de 



Vauzfeme did not find any Cyamus upon the Cachalot. 



2. " Cyamus Belphini," Guerin (from some species of Delphiitus in the West Indies), "very near 



to Cyamus glolncipiitis, if not identical with it." 



3. A Cyamus, also from some unknown J)elpihinus, regarded by Liitken as certainly a distinct 



species, though as the specimen is not full grown, and its habitat uncertain, he leaves it 

 iTnnamed. 



4. A whale-louse, which according to a plate published by Dr. Monedero, is, or used to be, 



parasitic on the Sarde or Basque w-hale {Nordkaperens eller Sardeiis Hvallus), instead of 

 which on the plate in question a Pycnogonum is figured. 



The species are pretty equally divided between the Mysticete, or "Whalebone whales, and the 

 Denticete, or Toothed whales, but hitherto not a single species has been found on a 

 genuine Fin-whale (Balxnoptera). One species of Cetacean may entertain more than one 

 species of these parasites, and the same species of Cyamus, just as the same species of 

 Cirripede, may occur on very nearly related species of Cetacea, especially on species of the 

 same subgenus. 



A postscript mentions Ball's new species " Cyamus Scammoni," which lives on the Californian 

 Grey whale, Hhachianectes c/laucus. Cope, and which Liitken thinks will stand between 

 Cyamus ovalis and " Cyamus Kessleri." Another species, Cyamns sufusiis, Dall, from the 

 Humpback, Megaptera versabilis, he considers to come near, perhaps to be identical with, 

 Cyamus pacificus. 



1873. Martens, Eduakd vox. 



Crustacea. The Zoological Record for 1S71 ; being Volume Eiglith of the 

 Record of Zoological Literature. London, m.dccc.lxxiil pp. 179-196. 



A synopsis is given of Boeck's Amphipoda, 1870. The name Tryphosa is noted as preoccupied 

 in Lepiidoptera, but I am informed by Mr. Edward Saunders, the entomologist, that the 

 name as used by Stephens for a genus of Lepidoptera has a different spelling, Trlphosa, 

 not Tryphosa, and that without variation so far as he could trace it. 



1873. MoBius, Karl, and Metzgee, A. 



Jahresbericht der Commission zur wissenschaftlichen Untersuchung der deutschen 

 Meere in Kiel fur das Jahr 1871. 1. Jahrgang. Berlin, 1873. (With second 

 Title page); Die Expedition zur physikalisch-chemischen und biologischen Unter- 



