COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 15 



terior margin. Carpus without anterior projections. Manus considerably 

 longer than fingers, latter curved, gaping, crossing at tips; gape with a 

 short pubescence and longer, scattered setae. 



Walking legs lightly granular, practically devoid of hairs. Merus 

 with a high crest on anterior margin, ending in an outward-pointing 

 tooth or spine. 



Variations: With increase in size of the crab, the chelipeds become 

 longer in relation to the size of the carapace; the larger cheliped is 

 about one and a half or two times the carapace length in young speci- 

 mens, two and a half times in adults. The walking legs, on the other 

 hand, become proportionately shorter with increase in size of the in- 

 dividual. 



Material examined: See Table 1. 



Measurements: Males, 1.8 to 4.2 mm; non-ovigerous females, 1.4 to 

 2.4 mm; ovigerous females, 1.8 to 3.2 mm. Measurements given by 

 Glassell for a male from the type series are 3.6 x 2,8 mm; for a female 

 3.8 X 3.0 mm. 



Color: Color in life a rich yellow; lines of red on the hepatic regions. 

 Hands with a few red blotches on outer surface; fingers with red bases 

 and tips. (Glassell) Traces of red blotches remain on the fingers in 

 some of the preserved material. 



Ecology: This species is commensal with gorgonians (fan corals). 

 The type series was collected by Glassell from gorgonians at a depth of 

 one fathom ; he stated that the corals were bright yellow, and that the 

 crabs, as well as isopods and amphipods associated with them, harmo- 

 nized exactly in color with their host. Hamburg Museum specimens 

 from Bahia de Caraquez, Ecuador, were taken in 4-5 fathoms from 

 gorgonians ("Facherkorallen"). U. S. National Museum specimens from 

 Isla San Lucas, Costa Rica, were "from dried Eugorgia nobilis Ver- 

 rill." Collecting data were not given for the lots from Mazatlan and 

 Panama, but they were probably taken under similar conditions. 



Ovigerous females are recorded for January, June, and December. 



Remarks: At the beginning of his description, Glassell gave the type 

 locality as "Magdalena Bay, Baja California, Mexico, 1 fathom; De- 

 cember 2, 1931" and designated a holotype and three paratypes. Later 

 in his account he reported the material examined to be a series of 35 

 specimens, collected at Santa Margarita Island, Magdalena Bay, Baja 

 California, at the same depth and on the same date. Presumably the 



