378 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 21 



Depth: Intertidal ; exceptionally to 12 fathoms. (Finnegan) 



Size and sex: Males in the extensive Hancock series are from 5.5 

 to 30.1 mm, females from 6.8 to 23.5 mm, ovigerous females from 10.6 

 to 23.5 mm, with young as small as 3.7 mm. 



Breeding: Ovigerous females were encountered by the Velero III 

 in December, January, and February. 



Remarks: Even more remarkable than the unusual third maxilliped, 

 described by Bell as "irregularly semilunar" in form, is the anomalous 

 male first pleopod mentioned in the diagnosis above. (See text-fig. 9C) 

 For while the maxilliped has its counterpart in certain other majid 

 genera (notably Stilbognathus) , a pleopod similarly enclosed in a pro- 

 tective sheath extending beyond its truncate tip has not been met with 

 in the family. The remarks made concerning Mithrax (Mithrax) belli 

 apply here as well, except that the relationship of Mithrax (Mithraculus) 

 nodosus to any particular mainland species is not as close as that of M. 

 (Mithrax) belli to M. (Mithrax) verrucosus. 



The Chilean record (Miers, 1886) has been traced through White 

 (1847) to specimens from Bell's collection, in all probability from the 

 type series. 



Genus TELEOPHRYS Stimpson 



Teleophrys Stimpson, 1860a, p. 133; 1860b, p. 190. Rathbun, 1925, 

 p. 440. 



Type: Teleophrys cristulipes Stimpson, by monotypy. 



Description: Allied to Mithrax proper, but distinguished by the 

 character of its orbits, which have the superior and exterior margins 

 entire, and not armed with tubercles or spines. Sometimes an indication 

 of a [closed] superior fissure, but no trace of an exterior one. Basal 

 [segment] of the external antennae rather narrow for the group to 

 which this genus belongs, tapering anteriorly, armed with a slight tooth 

 at the anteroexterior angle and another still smaller at the middle of the 

 outer margin. Merus of the external maxillipeds broader than the ischium 

 and three-fourths as long, and notched at the internal angle for the 

 reception of the palpus. (Stimpson, 1860b) 



Carapace ovate, legs cristate, and abdomen seven-segmented in both 

 sexes. 



Range: From Santa Maria Bay, Lower California, and Agua Verde 

 Bay, Gulf of California, Mexico, to Independencia Bay, Peru. In the 

 Caribbean at Curacao, and in the Atlantic from Fernando Noronha 

 Island to Maceio Reef, Alagoas, Brazil. Shore-70 fathoms. 



