558 BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



edges of palms sharp, the upper part of the outer surface covered with 

 silky wool. There are gradations between these two forms. ^^ 



Color. — Orange; fingers grayish or brownish yellow; short spines at 

 extremity of ambulatory dactyls brownish yellow. (Dana.) 



Measurements. — Ovigerous female (33337), length of carapace 12.2,. 

 width of same 15.1, fronto-orbital width 12.6, width of front between 

 antennae 5.5 mm. 



Range. — From Clarion Islands and Acapulco, Mexico, to Panama 

 and Galapagos Islands (Boone) ; Red Sea to Indo-Pacific region. 



American material examined — 



MEXICO.— Clarion Island; March 4, 1889; Albatross; 7 males, 5 

 females (17416). 



Acapulco; April 18, 1891; Alhatross; 1 female (20617). 



California Academy of Sciences; 1925: 



Maria Madre Island: E. part of bay; 5-8 meters; May 17, 1925; 

 F. Contreras; 11 males, 21 females (62708); 29 males, 21 females, 

 returned. Hanna and Jordan; 4-10 fathoms; 1 male, 1 female, 

 returned; 1 female (62694). 



Socorro Island; 2 ovigerous females: 1 returned; 1 (62695). 



Clarion Island; shore; 1 male, returned. 



PANAMA.— Panama; Henry A. Ward; 1 female (17302). 



Taboga Island; among corals; June, 1924; E. Deichmann; 1 oviger- 

 ous female (60830). 



Taboguilla Island; from coral, low tide, 1 fathom; October 31, 1904; 

 Albatross; 3 males, 7 females (33337). 



Pearl Islands; F. H. Bradle}'^; specimens in M.C.Z. 



TRAPEZIA CYMODOCE MACULATA (MacLeay) 



Plate 228, Figures 3 and 4 



G'rapsillus maculatus MacLeat, in Andrew Smith, 111. Zool. S. Africa, Aunulosar 



1838, p. 67 (type-locality. South Africa, type probably not extant). 

 Trapezia ynaculata Dana, U. S. Expl. Exped., vol. 13, Crust., pt. 1, 1852, p. 265; 



atlas, 1855, p. 15, figs. Aa-d. — Stimpson, Ann. Lye. Nat. Hist. New York, 



vol. 7, 1860, p. 219 [91]. 

 Trapezia rufopundata A. Milne Edwards (not Herbst), Crust. Reg. Mex., 1880, 



p. 342. 

 Trapezia ferruginea maculata Ortmann, Zool. Jahrb., Syst., vol. 10, 1897, p. 206. 

 Diagnosis. — Covered with small red spots. Antero-lateral mar- 

 gins diverging backward in the full grown; lateral projection a spine. 

 Front prominent, lobes strongly marked. 



«* Latreille described T. ferruginea as having the upper edge of the palm sharp. Concerning the specimens 

 in the Paris Museum, Professor Bouvier wrote as follows: 



" De Trapezia ferruginea caracterisfie par 'la tranche sup6rieure des mains aigufes' il n'en trouve pas dans 

 Qotre collection. Mais en comparant les assez uombreus exemplaires qui s'y trouvent j'ai pu remarquer 

 lu'il y a des difffirences tres sensible dans cette tranche, chez les divers spficimens. Dans les uns le bout 

 supfrieur est franchement arrondi et ne infirite pas le noni de 'tranche'; dans d'autres il est etroit, bien 

 listinct, ct forme 4 vrai dire une tranche, mais une tranche S peine saillante et jamais aigue. Entre les 

 deux extremes que je vous ai signal^, il me parait y avoir tous les intermediaires." 



