180 Mr. S. I. Smith on the Crustacea of the 



and 1000 fathoms, 27 between 1000 and 2000 fathoms, and 

 5 below 2000 fathoms. The whole number of species of 

 Decapoda determined from these stations is 72, but of these 

 at least 15 are true shallow- water species. Of the remaining 

 57 species, 40 were taken below 500 fathoms, 29 below 1000 

 fatlioms, 13 below 2000 fathoms, and 6 at a single haul in 

 2949 fathoms. Of the 29 species taken below 1000 fathoms, 

 21 are Caridea or true shrimps, and the eight higher species are 

 distributed as follows : — 2 Eryontidaj, 3 (jfalatiieidaj, 1 Pagu- 

 roid, 1 LithodeSj and 1 Brachyuran belonging to the Dorip- 

 pidse. It is interesting to compare these results with the lists 

 of the fauna of the North Atlantic below 1000 fathoms, given 

 by the Rev. Dr. Norman in the presidential address to the 

 Tyneside Naturalists' Field-Club, published last year. In 

 Dr. Norman's lists only 12 species of Decapoda are recorded, 

 none of them from as great a depth as 2000 fathoms, and of 

 these 12 species 7 were known only from the ' Blake ' 

 dredgings of 1880. 



The following are some of the more interesting new forms : — 

 a new genus of Brachyura allied to Ethusa, 1496 to 1735 

 fatlioms ; an Anomuran belonging to A. Milne-Edwards's 

 new genus Galacantha, 1479 fathoms ; two species of Penta- 

 cheles (a genus of Eryontid^e, allied to TFiV/emoesza) , between 

 843 and 1917 fathoms; a stout Pala^monid [Notostomus) , 6 

 inches long and intense dark crimson in colour, 1309 to 1555 

 fathoms; a gigantic Pasd^/me, 8^ inches long, 1342 fathoms ; 

 three species of a remarkable new genus allied to Pasiphae, 

 and also to Hymenodora and some other genera of Paltemo- 

 nida3, which shows that Pasiphae is closely allied to the Palffi- 

 monidse ; a large Pengeid, 1 foot in length, referred to the 

 little-known genus Aristeus ; and a large Sergestes 3 inches 

 in length. 



The great size of some of these new species of shrimps is 

 remarkable, but is far exceeded by two of the previously de- 

 scribed crabs. Geryon quinquedens^ from 105 to 588 fathoms, 

 is one of the largest Brachyurans known, the carapax in some 

 specimens being 5 inches long and 6 broad ; while one speci- 

 men of the great spiny Lithodes Agassizii measures 7 inches 

 in length and 6 in breadth of carapax, and the outstretched 

 legs are over 3 feet in extent. 



Among the Schizopoda there are two large species of 

 GnatJiojyhausa, one over 4 inches in length, and a Lophogaster^ 

 all from below 2000 fathoms. One of the most interesting 

 Schizopods is a small Thysanoessa (a genus of Euphausidse) 

 from 398 to 1067 fathoms, of which one female was found 

 carrying eggs. The eggs are carried in an elongated and 



