NO. 



GARTH : NEW BRACHYURAN CRABS 23 



granules becoming acuminate above. Dactyls of the large manus rough- 

 ened at base, immovable finger strongly toothed, fingers closing with a 

 slight gape, the tips crossing; no teeth on movable finger. Fingers of 

 small hand long, narrow, thin, curved, the knifelike edges meeting their 

 entire length, a single row of setae lining the inner surface of each ; tips 

 fine, curved, and overlapping. 



Ambulatory legs narrow, laterally compressed, the last three seg- 

 ments sparsely hairy. Dactyls incurving, provided with a proximal pro- 

 jection which neatly overrides a corresponding flange of the propodus, 

 and fringed with plumose hairs. 



Coloi- in life: Ground color of carapace ivory yellow to cream 

 buff; posterolateral, branchial, and cardiac areas ivory yellow; gastric 

 and frontal regions cream buff with cadmium orange hue, slightly 

 darker on frontal area. A border of clear jasper pink on front, around 

 eye and marginal teeth, fading out on anterolateral margin. This color 

 appears also on intestinal region, but a shade darker. Designs on carapace 

 Eugenia red and grass green on posterior and Brazil red and cedar 

 green on anterior areas. Eyestalk cadmium orange, eye dark garnet 

 brown. Cheliped clear creamy white with coral red on merus and carpus. 

 Small granules on hand Indian lake, large tubercles coral pink, lighter 

 on outer surface with yellowish hue, band on distal end spinel red. 

 Fingers hazel brown at base, becoming lighter toward tip. Ventral 

 side clear white with tinge of bluish lavender. ( Petersen) 



Range: The 24 specimens in the Hancock collections are from 

 Onslow Island, near Charles Island, and Barrington Island, Galapagos. 

 All were cracked from Pavonia coral. 



Remarks: The above species is closely allied to M. gardineri Rath- 

 bun (1911) from which it differs in the following particulars, as shown 

 by a comparison with the type: 



(1) Anterolateral denticles less prominent, the second, exclusive of 

 the postorbital, but faintly indicated. 



(2) The sharpened, white granules which are so conspicuous on 

 the outer portion of both chelae and at the base of the movable fingers 

 of each hand in gardineri are reduced to a flattened paving of granules 

 of the same color as the background, although slightly sharpened on 

 the minor chela, and are not arranged in rows. 



(3) Immovable finger of major manus not constricted at base,, a 

 feature not mentioned in the description of gardineri but discovered by 

 examination of type. 



