84 STALK-EYED CRUSTACEA. 



M. bairdii has been taken off" the east coast of the United States in 1497 

 and 1742 fathoms, 



Munidopsis ciliata Wood-IMason. 

 Plate XVIIL, Fig. 3. 



Munidopsis brevimana Hend., Anu. Mag. Nat. Hist., 5th Scr., XVI. 414, 1885 ; Rep. Clialleiiger Auo- 



mura, p. 154, Plate XVII. Fig. 1, 2, 1888. {Nomen praoc.*) 

 Munidopsis ciliata Wood-Mason, Ann. Mag. Nat. Hist., 6tli Ser., VII. 200, 1891. 



Most of the "Albatross" specimens are more hairy than those described 

 by Henderson. In this respect they agree with M. ciliata Wood-Mason. 

 These specimens also show that the number of lateral spines of the carapace, 

 relied upon by Wood-Mason to distinguish his species from M. brevimana 

 Hend., is inconstant. 



In some specimens there is an extra spine on each side of the front mar- 

 gin of the carapace, between the supraantennal spine and the spine at the 

 antero-lateral angle. 



Just as these pages are going to press, the type specimen of Munidopsis 

 nitidn (A. M. Edw.)t is returned from Paris. It is a male 23 mm. long 

 (" Blake " Sta. 163, Guadaloupe, 769 fathoms), and differs from M. ciliata but 

 very slightly. The carapace is less hairy and more polished ; the transverse 

 squamiform ridges, which are very evident in M. ciliata, are obsolescent. 

 The transverse furrow which divides the terga of the second, third, and 

 fourth abdominal somites into two prominent ridges in M. ciliata is but faintly 

 indicated in M. nitida. The tubercles on the superior face of the merus of 

 the ambulatory appendages, moreover, are much less pronounced in Milne 

 Edwards'.s species. In short, 31. nitida is a less heavily sculptured and less 

 hairy form than M. ciliata. The characters that separate the two forms 

 appear to be of racial or varietal, rather than specific, value, but the name 

 M. cdiata may be provisionally retained for the Pacific and Indian Ocean 

 form imtil the distribution of each form is more fully known. 



• Sec pp. 81, 82. 



+ Orophorrhinrhm nilidus A. M. Edw., Bull. Mus. Comp. Zool., VIII. 59, 1880 ; Munidopsis nitida 

 A. M. Edw. ct Bouv., Ann. Sci. Nat., Zool., 7*"" Ser., XVI. 275, 1894. 



