32 CRUSTACEA MALACOSTRACA. 



maxilliped, to judge from his figure, differs considerably from any of my numerous specimens, which 

 came from many localities, and I entertain grave doubts as to whether Bonnier's figure mentioned is 

 at all correct in the differences it is intended to show from the figure of the same maxilliped in his 

 G. nexa. The third maxilliped of some of my specimens agree tolerably well with his figure of G. nexa, 

 while in the other specimens it is more or less halfway between his figures of nexa and dispersa. A. Milne- 

 Edwards & Bouvier (1899) give an account of the differences between G.nexa and G. dispersa; but a 

 study of my material has given the result that all my smaller specimens belong to G. dispersa, 

 whereas some of the largest --in the spines and hairs on the chelae and also in other respects - 

 approach more or less near to G. nexa, without ever having however the form of rostrum de- 

 scribed by the French authors. The two largest specimens I have seen are males (from the Faeroes); 

 in the one the scutum is 20-3 mm. in the other only 16-3 mm. long. A. Milne-Edwards & Bouvier have 

 only seen a single specimen (c?) of G. nexa, Bonnier likewise only one (c?) and both were large. Judging 

 from my material and a comparison of it with descriptions given by these authors I must conclude 

 that G. nexa was based on age-characters in single, large and well-marked males of G. dispersa. But 

 as this name is much younger than nexa, the latter must be used for the species as now understood. 



23. Munida bamffica Penn. 



PI. II, fig. 3 a. 



1777. Astacus bamffius Pennant, Brit. Zool., Vol. IV, p. 17, PL XIII, fig. 25. 



1882 Munida rugosa G. O. Sars, Vid. Selsk. Forh. Christ, for 1882, no. 18, Tab. I, Fig. 5. 



Rondeletii G. O. Sars, Vid. Selsk. Forh. Christ, for 1882, p. 43, Tab. i, Fig. 4. 



! 1894. bamffica A. Milne-Edwards & Bouvier, Res. des Comp. Sc. de 1'Hirondelle, fasc. VII, p. 83, 



PI. VII, figs. 17. 



1899. A. Milne-Edwards & Bouvier, Res. Sc. de 1'Hirondelle (Suppl.) et de la "Princesse 



Alice", fasc. XIII, p. 75, PL IV, figs. 6-16. 



1900. A. Milne-Edwards & Bouvier, Exp. Scient du Travailleur et du Talisman, Crust. 



Dec., I, p. 299, PL XXIX, fig. 17. 



Occurrence. The "Ingolf" has taken this species at 5 stations. 

 West of Iceland: St. 98: 65 38' N. L., 26 27' W. L., 138 fm., temp. 5-9; 3 spec. 



- 87: 65 02' 23 56' no - ? ; 2 



- 9: 6 4 c i8' 27 oo' 295 - 5-8; i 



- 85: 63 21' 25 21' 170 - ? ; 4 

 South of Iceland: - 54: 63 08' 15 40' 691 - 3-9; 5 



Further, it has been taken at 63 15' N. L., 2223'W. L,., 115173 fm. ("Thor" 1903) and three 

 times near the Faeroes, namely: 8 10 miles N. of the Faeroes, 5 specimens; 12 miles east of the most 

 sotitherly island, 150 fm., 3 specimens; and 61 9' N. L,., 754'W. L., iSofm., temp. 8-4, i specimen. 



Distribution. It is impossible at present to treat this subject fully at all points, as the 

 French authors cited above have wrongly included M. tenuimana G. O. Sars as a synonym under M. 

 bamffica. and it is very probable that several of their localities, as also of the following authors (Caullery, 



