14S 
THE VOYAGE OF H.M.S. CHALLENGER. 
Indo-Pacific Species. 
Pilumnus vespertilio (Fabricius) = Pilumnus ursulus, Adams and White; and 
Pilumnus mus, Dana. Indo-Pacific Region (to 17 fathoms). 
Pilumnus tomentosus, Latreille. Off Port Philip, Australia, 33 fathoms (Station 
161) ; Bass Strait, 38 fathoms (Station 162). 
Pilumnus peronii, Milne Edwards. Seas of Asia. 
Pilumnus forskdlii, Milne Edwards = Cancer incanus, Forskal. Coasts of Egypt. 
This is possibly a variety of Pilumnus vespertilio, since Dr. Kossmann unites 
Pilumnus ursulus with this species, but in specimens from the Red Sea, 
referred to Pilumnus forskdlii in the collection of the British Museum, not 
only are the tubercles of the palms of the chelipedes more distinctly longi- 
tudinally seriate, but also the interior margin of the front is armed with 
longer spinules. 
Pilumnus l-anatus, Latreille. East Indies; North and East Australia, to 11 
fathoms (H.M.S. “Alert”) ; Tasmania. 
Pilumnus asper (Riippell). Red Sea. 
Pilumnus minutus, de Haan = Pilumnus hirsutus, Stimpson. J apan and Corean 
Straits (to 50 fathoms) ; North China Sea ; New Caledonia ; North-East 
Australia ; Holborn Island (20 fathoms). 
Pilumnus scabriusculus, Adams and White. Eastern Seas ; Samboangan, 
Philippines. 1 
Pilumnus globosus, Dana. Tahiti and Paumotu Islands ; Japan (50 fathoms). 
Pilumnus Isevimcmus , Dana. Balabac Passage ; North of Borneo ; New Caledonia. 
Pilumnus Isevis, Dana. Mangsi Islands, Straits of Balabac. 
Pilumnus tenellus, Dana. Sooloo Sea, or Straits of Balabac. 
Pilumnus rufopunctatus, Stimpson. East and South Australia. 
Pilumnus fissifrons, Stimpson. East Australia. 
Pilumnus forfcigerus, Stimpson. Oosima, Japan (30 fathoms). 
Pilumnus lapillimanus, Stimpson. North China Sea (25 fathoms). 
Pilumnus marginatus, Stimpson. Loo-Choo. 
Pilumnus dor sipes, Stimpson. Hong Kong (10 fathoms). 
Pilumnus (?) pugilator (A. Milne Edwards). Lifu Island ; North-East to East 
Australia (to 17 fathoms). 
Pilumnus fragifer, A. Milne Edwards. Indian Ocean (perhaps a Pilumnopeus). 
Pilumnus elatus, A. Milne Edwards. Upolu, Samoan Islands. 
Pilumnus ovalis, A. Milne Edwards. Sandwich Islands. 
1 Pilumnus dilatipes, Adams and White, cannot be referred to this genus. Not only are the palatal ridges 
nearly obsolete, hut the ambulatory legs are strongly cristated. It should probably he constituted the type of a distinct 
genus, Lophopilumnus. 
