CLIPPERTON ISLAND DECAPODS—CHACE 623 
Petrolisthes glasselli Haig 
Petrolisthes glasselli Haig, 1957, p. 33, pl. 8; 1960, p. 39, pl. 20, fig. 2. 
Mareriau: Northeast side, 50-60 feet; September 20, 1958; C. 
Limbaugh; 3 males, 3 ovigerous females. 
MEASUREMENTS: Carapace lengths of males, 4.6-6.0 mm.; of 
ovigerous females, 5.0—-7.1 mm. 
Remarks: Comparison of the present series with the holotype 
and other specimens of P. glasselli from Colombia reveals no obvious 
morphological differences, but the color patterns are strikingly 
distinct. Colombian specimens, in which the color pattern persists, 
have transverse bands of deep purplish red, corresponding with the 
striations, on the dorsal surfaces of the carapace and chelipeds, as 
described by Miss Haig. In the Clipperton material, these bands 
are more or less regularly interrupted so that the crabs appear grossly 
spotted from above. Whether this color difference has any taxonomic 
significance can only be determined by the examination of fresh 
material from other parts of the range of the species. 
DistriBuTION: Otherwise known from Gulf of California to 
Colombia and Isabel, Tres Marias, Revilla Gigedo, and Galapagos 
Islands. 
Family Paguridae: Subfamily Pagurinae 
?Pagurus lepidus (Bouvier) 
FIGurRE 2 
Eupagurus lepidus Bouvier, 1898, p. 381. 
Pagurus lepidus Glassell, 1937b, p. 256. 
Materia: Northeast side, 45 feet; August 28, 1958; Limbaugh, 
Chess, and Hambly; 1 male, 2 ovigerous females. 
MEASUREMENTS: Length of anterior part of carapace, from tip 
of rostrum to cervical groove: male, 1.8 mm.; ovigerous females, 
1.4-2.0 mm. 
Remarks: These specimens agree in most particulars with a lot 
of two males, one female, and five juveniles in the collections of the 
U.S. National Museum from the Gulf of California at Puerto Penasco, 
Sonora, Mexico. The only striking difference is in the form of the 
ocular scales; in all of the Mexican specimens, the scales are armed 
on the median margins with four to six prominent spines, as stated 
by Bouvier, whereas those spines are replaced by setae in the Clip- 
perton specimens. It is very possible that this difference will prove 
to be of specific or subspecific importance, but it seems best to avoid 
proposing a new name until more specimens from various localities 
can be studied. 
Distrisution: Previously recorded only from the Gulf of California. 
