162 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 24 



is often reduced to a vestige. In very small examples, the major chel- 

 iped has the same shape as the minor, with the hiatus between the 

 fingers not present; however, the thick tuft of pubescence character- 

 istic of the major cheliped may be seen in even the youngest specimens. 



Material examined: Off beach at La Libertad, Ecuador, 4 fathoms; 

 January 19, 1933; Velero III station 12-33; one young female. 



Measure?nents: The single juvenile specimen measured 2.6 mm. The 

 Hancock Foundation collections include Atlantic coast males to 8.6 mm, 

 females to 9.0 mm in length. 



Ecology: The Pacific coast specimen was dredged in 4 fathoms 

 from a sand bottom. In the Atlantic, the species is known in the in- 

 tertidal zone and to a depth of 18 fathoms. It has been found on algae 

 {Fucus). 



Remarks: The above description was prepared from a series of nine 

 specimens from Hillsboro Reef, Florida, and Isla Cubagua, Venezuela, 

 in the collections of the Hancock Foundation. The juvenile female 

 from Ecuador agrees in every respect with specimens of Pachycheles 

 rjionilifer of comparable size, and is therefore tentatively referred to 

 this species. The exact determination of its status, whether P. monilifer 

 or a closely related but distinct form, must await recovery of adult ma- 

 terial from the Pacific coast. 



Range: Recorded for the first time from the Pacific coast, at La 

 Libertad, Ecuador. Known in the Atlantic from Hillsboro Reef, Florida, 

 to Rio de Janeiro, Brazil. 



Pachycheles pubescens Holmes 

 Plate 34, fig. 3 

 Pachycheles pubescens Holmes, 1900, p. 110 (type localities. Drakes 

 Bay, Farallon Islands, and Humboldt County, California). Rath- 

 bun, 1904, p. 168. Schmitt, 1921, p. 177, pi. 33, fig. 4; text-fig. 

 112. Johnson and Snook, 1927, p. 350. Glassell, 1935, p. 105; 

 1938a, p. 444. Hart, 1940, p. 92; 1953, p. 140. Light, 1954, pp. 

 183, 186, text-fig. 90e. Not Balss, 1913, p. 32, text-figs. 22-24. 



Previous records: 

 British Columbia. Goose Island (Hart 1953). Nuchatlitz Inlet and Es- 



peranza Inlet, Vancouver Island: E. G. Hart (Hart 1940). 

 Washington. Port Orchard, Puget Sound: (Schmitt). 



