NO. 1162. BEACEYVBA COLLECTED BY THE ALBATROSS— RA TUB UN. 583 



57. ACTiEA INORNATA, new species. 

 (Plate XLII, fig. 3.) 



Carapace narrow^ granulate^ pubescent^ not lohulatc. 



Carapace rather narrow for tlie j?enus; very coiivex antero- poster- 

 iorly, slightly so traiisverely; entire surface of crab covered with a 

 short, dense pubescence, which must be removed to see the character of 

 the surface beneath. The rejiions of the carai)ace are faintly outlined, 

 and are not lobulated as in typical Aetata, althouj>h there are traces of 

 shallow furrows on the branchial region. The surface is sparsely orna- 

 mented with line granules, most numerous along the lateral margins. 

 These margins arc cut by three shallow notches into four lobes. A 

 median furrow extends from the gastric region down to the front, which 

 is divided by a slight emargination into two slightly sinuous and 

 oblitiue lobes. The basal Joint of the antenna does not reach as far 

 forwjird as the inner angle of the orbit. 



The chelipeds are nearly equal. The carpus and menus are covered 

 with deiuessed granules larger than those of the carapace. The fingers 

 are furrowed, granidate, and white 5 their prehensile teeth are irregular. 

 The dactylus is longer than the superior margin of the propodus; the 

 pollex is not defiexed. The single specimen taken is a female, appar- 

 ently adult. 

 . DimenHions. — Female: Length, 4.3 mm.; width, 5.6 mm. 



Tj/pe.—^o. 21579, U.S.N.M. One female, from off Cape iSt. Roque, 

 Brazil, 20 fathoms, station 2758, 



58. OZIUS VERREAUXII Saussure. 

 Oziua lerreauxii Saussurk, Rev. Mag. Zool., 1853, 2d eer., V, p. 359, pi. xii, fig. 1. 



James Island, Chatham Island, and Indefatigable Island, of the 

 Galapagos. 



59. OZIUS AGASSIZII A. Milne-Edwards. 

 Oziu8 af/assizii A Milne-Edwards, Crust. Keg. Mex., 1880, p. 279, pi. lv, fig. 1. 

 Duncan Island, Galapagos. 



60. MEDiEUS LOBIPES, new species. 

 (Plate XLIV, iig. 1.) 



Amhulatory legs ivith lobate crests. 



Carapace shorter and broader than in M. spinimanus Milne-Edwards; 

 lobules similar in shape and position to those of that species. In the 

 largest specimen the tuberculation of the lobules is less extensive than 

 in smaller specimens, and also less extensive than in the somewhat 

 larger individual of M. sjilnimanus, with which it is compared. Poste- 

 rior half of mesogastric region divided by a median sulcus into two 

 lobules. Cardiac region also distinctly divided in the same way. Front 

 less advanced, and lobes less ol)li(|ue than in ]\l. spinimanus. The lat- 

 eral teeth and the chelipeds offer no dilierences worthy of note. The 



