412 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



Re7narks. — A specimen sent Miss Rathbun in 1933 was returned with 

 the notation "Parthenope, n. sp., nr. P. guerini (Brito Capello)." Ex- 

 amination of a specimen of the latter (USNM No. 55783) in 1937 re- 

 vealed that the Galapagos specimens were not even of the same subgenus, 

 their shorter chehpeds placing them in Pseudolambrus Paulson (1875) 

 rather than in Platylambrus Stimpson (1871). By this time most of the 

 Hancock mainland material had been identified, Stimpson's P. triangula 

 rediscovered, both in the north and in adjacent Ecuadorean waters (un- 

 published records), and it was realized that the Galapagos specimens were 

 referable to this species. 



P. triangula is now recorded from the Galapagos Islands. 



Genus DALDORFIA Rathbun, 1904 



Daldorfia Rathbun, Proc. Biol. Soc. Washington, vol. 17, p. 171, 1904. 



The name Daldorfia was proposed to replace Lambrus Leach, retired 

 as a synonym of Parthenope Weber. Besides the type species, D. horrida 

 (Linnaeus), the genus now contains D. semicircularis (Flipse) and the 

 following D. garthi Glassell. 



Daldorfia garthi Glassell 



Plate 55, Figs. 1-11 



Parthenope (Pseudolambrus) excavata Boone, Zoologica, vol. 8, no. 4, 



p. 173, fig. 58, 1927. 

 Daldorfia garthi Glassell, Allan Hancock Pac. Exped., vol. 5, no. 3, p. 67, 

 pi. 17, figs. 1-11, 1940. 



Type locality. — Sulivan Bay, James Island, Galapagos Islands. 

 T:i;^^.— AHFno. 3811. 



Range. — Cape San Lucas, Lower California, to Colombia (Velero 

 III); Galapagos Islands (Velero III). 



Diagnosis. — Carapace triangular, deeply eroded, anterolateral margins 

 spined, posterolateral margin straight. Meri of ambulatory legs with over- 

 lapping teeth, propodi with 2 denticles on lower margin. Chelipeds mas- 

 sive, unequal. A semiovoid sternal pit. 



Material examined (11 specimens from 4 stations). — 

 312-35. Black Beach, Charles Island, shore, Dec. 5, 1934, 1 female. 

 313-35. Black Beach, Charles Island, shore, Dec. 5, 1934, 1 female. 

 343-35. Sulivan Bay, James Island, shore, Dec. 12, 1934, 1 male. 

 796-38. Sulivan Bay, James Island, shore, Jan. 21, 1938, 1 male (holo- 

 type, AHF no. 3811) ; also 6 males and one female (paratypes). 

 Measuretnents. — Male holotype : length 31 mm, width 47 mm, merus 

 of cheliped 29 mm, carpus 13 mm, manus including pollex 46 mm. 



