﻿158 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



Second maxilla. — Each of the 2 outer lobe lappets with 4 setae, inner 

 lobe with about 8 setae. 



Mandible. — Left mandible incisor with five teeth, lacinia with five 

 teeth, setal row with five plus one setae. Eight mandible incisor with 

 5 teeth, lacinia lacking, setal row with nine setae. 



Types. — The holotype was collected at Tomales Point, bay side, 

 Marin County, Calif., May 23, 1948, by R. J. Menzies ; lower intertidal 

 zone, with calcareous algae. Type specimens have been deposited in 

 the following institutions : 



United States National Museum, holotype (No. 89528) ; allotype and 

 1 paratype. Allan Hancock Foundation, 2 paratypes. Universitets 

 Zoologiske Museum, Oslo, Norway, 1 paratype. Rijksmuseum Van 

 Natuurlijke Historie, Leiden, Holland, 2 paratypes. Pacific Marine 

 Station, 9 paratypes, accession numbers 1327-1329 Arth. 



Geographical distribution. — Marin to Monterey Counties, Calif. 



Material examined. — In addition to the holotype the following 

 California material was examined : 



Marin County: Tomales Pointy ocean side with Scrupocellaria^ 

 August 18, 1947, R. J. Menzies collector, 1 paratype ; reef, with Lami- 

 naria., June 9, 1948, 6 paratypes ; Dillon Beach., First Sled Road, on hy- 

 droids, August 14, 1947, 1 paratype. San Mateo County: Moss 

 Beach., in algal clump, December 26, 1947, Miss Margaret Barr col- 

 lector, 2 paratypes. Monterey County : Asiloma/r^ from surface with 

 Amarouciwn calij ornica., July 17, 1947, University of California col- 

 lection, 6 paratypes. Pacific Grove, Aumentos Rocks, in algae. May 

 20, 1930, 1 paratype ; from a sponge, November 7, 1942, E. C. Dough- 

 erty, collector, 3 paratypes. 



Ecology. — A mid-intertidal form, some specimens found with speci- 

 mens of /. montereyensis. Ovigerous specimens were found during 

 July. 



LITERATURE CITED 



Amar, Raymond. 



1948. Une nouvelle espece M^dit^rran^ene du genre Munna (Isopoda Asel- 

 lota). Bull. Miis. Hist. Nat. Marseille, vol. 8 (2-3), pp. 62-73, fig. 1. 

 Fee, A. R. 



1926. The Isopoda of Departure Bay and vicinity, with descriptions of new 

 species, variations and color notes. Contr. Can. Biol, and Fish,, 

 new ser., vol. 3, No. 2, pp. 15-47, 1 pi. 



GtTRJANOVA, EUPRAXIA. 



1933. Contributions to the isopod fauna of the Pacific Ocean, No. 2; new 



species of Gnathiidae and Asellota. Explorations des Mers 



U. S. S. R. Leningrad, No. 19, pp. 78-97. 

 1936. Beitrage zur Kenntnis der Isopodenfauna des Pazifischen Ozeans. IV. 



Neue Isopodenarten aus dem Japanischen und Bering Meer. Zool. 



Anz., vol. 114, pp. 250-265. 



