No. 10 garth: brachyuran fauna of the galapagos 353 



792-38. Off Daphne Minor Island, 70-80 fms, Jan. 20, 1938, 6 young 



(AHF no. 38014). 

 814-38. North of Hood Island, 20-40 fms, Jan. 28, 1 male, 1 fragment 



(AHF no. 38015). 

 816-38. North of Hood Island, 50-100 fms, Jan. 29, 1938, 3 young 

 (1 photographed) (AHF no. 38016). 

 Measurements. — Largest specimen, male: length 12.3 mm, width 

 12.0 mm, cheliped 17.0 mm, chela 7.3 mm, dactyl 4.0 mm. 



Habitat. — Sand and shell, sand and mud; coral, nullipore, and rock. 

 Depth.— 2-100 fms. 



Remarks. — E. lata is another species which carries a protective armor 

 dorsally. In this case it is neither a sponge, as with the Dromidias, nor a 

 clam shell, as with the Hypoconchas, but a particle of a shell no bigger 

 than the carapace, which leaves the long, slender legs protruding instead 

 of tucked underneath, as in the other two. 



With the exception of Ethusina gracilipes Miers, dredged by the 

 Albatross in depths of from 885 to 1,360 fathoms, far below the limits 

 of the littoral zone, no member of the family Dorippidae was known to 

 inhabit Galapagos waters prior to the dredging operations of the Velero 

 III. 



Genus GLYTHROGERUS A. Milne Edwards and bouvier, 1899 



Glythrocerus laminatus Rathbun 



Plate 50, Figs. 1-7 



Clythrocerus laminatus Rathbun, Proc. Biol. Soc. Washington, vol. 48, 

 p. 2, 1935 ; Bull. 166, U.S. Nat. Mus., p. 115, pi. 80, figs. 1-4, 1937. 

 Type locality. — ^Wenman Island, Galapagos Islands, 100-150 fms. 

 Type.— USNM No. 69221. 



Range. — Clarion Island, Mexico (Velero III); Galapagos Islands 

 (Velero III). 



Diagnosis. — Carapace wider than long. Frontal teeth broad, subacute ; 

 outer orbital tooth bluntly rounded. One lateral marginal tooth in front 

 of widest part of carapace. Carpus of male bearing a large square plate 

 on inner edge. Last two legs dorsal, prehensile ; crab carries a bit of shell. 

 Material examined (48 specimens from 9 stations). — 

 143-34. Wenman Island, 100-150 fms, Jan. 11, 1934, 4 males, 2 fe- 

 males (USNM Nos. 69221 (the type), 69194, 69192, 69222, and 

 69193), 5 males, 2 females, 1 young (AHF no. 34027). 

 148-34. Tagus Cove, Albemarle Island, 12-15 fms, Jan. 13, 1934, 1 

 young (AHF no. 34028). 



