PLANES. 29 



similar to G. ruricola, from the eastern coast. Moreover, the front is nar- 

 rower, deeper, and bent down at a sharper angle than in G. qnadndm, and 

 the merus of the outer maxillipeds is very different in shape from that 

 of G. qiiadratus or any other known species. 



Family OCYPODID.E. 

 GELASIMUS Latr. 



Nouv. Diet, d' Hist. Nat., 2'= ed., XI. 517, 1817. 



Gelasimus sp. 



A male specimen of a species of Gelasimus was collected on Chatham 

 Island, Galapagos. It agrees with the figure of Gelasimus macrodadijlus 

 M. Edw. et Luc.,* except in the proportions of the carapace, which is 

 broader (13 X 19 mm.) in the Galapagos specimen. 



Family GRAPSID^. 

 PLANES BowDicH. 



Excursions iu Madeira and Porto Santo, p. 15, Fig. 2", 2', 1S25. 



Planes, a MS. name of Dr. Leach's, was first published in T. Edward 

 Bowdich's " Excursions in Madeira and Porto Santo, during the Autumn 

 of 1823," London, 1825. In this work Bowdich figured and assigned to 

 this genus the Cancer minutus of Linne, under the name of Planes chipeatus. 

 The name Planes was afterwards adopted by Bell, White, and Dana, and 

 more recently by Mierst and Haswell. t But most recent authors have 

 rejected Planes in favor of the later Nautilograpsns of Milne Edwai'ds, § on 

 account of the insufficiency of Bowdich's description. Accepting the judi- 

 cious ruling of the American Ornithologists' Union committee on nomen- 

 clature II — that a recognizable published figure affords a valid basis for a 

 generic name — I retain Leach's name for this genus ; for Bowdich's figures, 

 though rudely executed, are unmistakable. 



* D'Orbignj's Voy. dans I'Amer. Merid., Crust., p. 27, Plate XI. Fig. 3, 1843. 



t Cat. Stalk- and Sessile-eyed Crust. New Zealand, p. 39, 1876. 



I Cat. Australian Stalk- and Sessile-eyed Crust., p, 99, 1SS2. 

 § Hist. Nat. Crust., II. 89, 1837. 



II The Code of Nomenclature and Check-List of North American Birds, adopted by the American Orni- 

 thologists' Union ; being the Report of the Committee of the Union on Classification and Nomenclature. 

 Nevy York, 1886. Canon XLIL, p. 52. 



