ie 
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 @. guadratus, and 
the merus of the outer mavxillipeds is very different in shape from that 
of G. guadratus or any other known species. 
Famity OCYPODIDA. 
GELASIMUS Larr. 
Nouv. Dict. d’ Hist, Nat., 2° éd., 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 macrodactylus 
M. Edw. et Luc.,* except in the proportions of the carapace, which is 
broader (13 X 19 mm.) in the Galapagos specimen. 
Famity GRAPSIDAN, 
PLANES Bowpicu. 
Excursions in Madeira and Porto Santo, p. 15, Fig. 27, 2°, 1825. 
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 Linné, under the name of Planes elypeatus. 
The name Planes was afterwards adopted by Bell, White, and Dana, and 
more recently by Mierst and Haswell.£ But most recent authors have 
rejected Planes in favor of the later Mautilograpsus of Milne Edwards, § on 
account of the insufficiency of Bowdich’s description. Accepting the judi- 
cious ruling of the American Ornithologists’ Union committee on nomen- 
clature || — 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’Orbigny’s Voy. dans Amér. Mérid., Crust., p. 27, Plate XI. Fig. 3, 1843. 
+ Cat. Stalk- and Sessile-eyed Crust. New Zealand, p. 39, 1876. 
$ Cat. Australian Stalk- and Sessile-eyed Crust., p, 99, 1882. 
§ Hist. Nat. Crust., II. 89, 1837. 
|| 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. 
Ney York, 1886. Canon XLIL., p. 52. 
