192 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 24 



to 12.1 mm. The single ovigerous female examined, in the collections 

 of the Museum of Comparative Zoology, was not measured. Locking- 

 ton reported a length of 6 mm and width of 4 mm for one of his 

 specimens; the male paratype and ovigerous female lectotype in the 

 Paris Museum measure 11.5 by 6.7 mm and 6.7 by 4.4 mm, respectively. 

 Glassell's female neotype is 8.3 by 6.1 mm, and his male neoallotype 

 6.2 by 4.2 mm. 



Color: Carapace dark pinkish buff and striated longitudinally with 

 reddish brown. Chelae yellow cream buff with a large brown spot on 

 merus and carpus. Fingers with a broad dark brown band around 

 center. Ambulatory legs greenish white with touches of brilliant orange. 

 Ventral side pinkish buff. A dark brown band runs from eye socket 

 across center portion of maxillipeds. (Petersen, of a live specimen from 

 the Gulf of California) 



Ecology: S. A. Glassell collected specimens at Punta Penasco, Gulf 

 of California, at extreme low water, partly covered with sand and shell 

 fragments at the base of gorgonian corals. A specimen was taken by 

 him under similar conditions at San Felipe. Otherwise, all known ma- 

 terial has been dredged in 2 to 34 fathoms on bottoms of sand, shell, 

 sand and shell, sandy mud, and sand with corallines. 



The only ovigerous females on record were taken by Lockington 

 in September. The month of collecting was not indicated for the Hassler 

 ovigerous female collected at Bahia de la Magdalena. 



Rcfnarks: Of the two extant syntypes in the Paris Museum, the 

 smaller, an ovigerous female, is designated as the lectotype. The 11.5 

 mm male paratype lacks the chelipeds and many of the walking legs. 



Not realizing that any of Lockington's porcellanid types remained 

 extant, Glassell (1938a) designated a neotype for Euceramus transversi- 

 lineatus from among specimens of his own collecting. An excellent illus- 

 tration accompanies his account. 



Range: Bahia de Santa Maria and Bahia de la Magdalena, Baja 

 California; Punta Penasco and San Felipe, Gulf of California, south to 

 Isla Taboga, Panama. Shore to 34 fathoms. 



