A NEW SPECIES OF SYNAPSEUDES — MENZIES 515 



ovigerous; June 9, 1948, R. J. Menzies, 11 males, 9 females, 7 ovigcrous. 



San Mateo County: Moss Beach^ December 26, 1947, Margaret 

 Barr, 2 males, 1 female with empty marsupium. 



Monterey County: Garmel Cove, July 18, 1947, T. R. Howell, 

 1 male, 1 ovigerous female; July 6, 1947, J. Davis, 4 specimens. 



Geografhical distribution. — Marin County to INIonterey County, 

 Calif. 



Ecology. — The collections indicate the species to be abundant in and 

 just above the laminarian zone. Specimens were found on the hold- 

 fasts of the algae Egregia, Macrocystis., and Lamincu^; on the bryo- 

 zoans Filicrisia sp., Tricellaria occidentalism and Scmfocellaria cali- 

 foimica; on the dorsal surface of the sea-star Pateria miniata and the 

 abalone Haliotes sp. ; and on and under rocks in the laminarian zone. 

 One specimen was collected from a Mytilus calif ornianus bed. The 

 species appears most abundant at wave-swept open rocky coast 

 localities. 



Reproduction. — Ovigerous specimens were found from May to Au- 

 gust inclusive and in December. 



Types. — Type specimens are deposited in the following institutions : 

 United States National Museum, female holotype. No. 87416, allotype, 

 figured paratype, and o male and 5 female paratypes. Allan Han- 

 cock Foundation, 2 male and 2 female paratypes. Pacific Marine Sta- 

 tion, 11 male, 19 female, and 1 juvenile paratypes. 



KEY TO THE KNOWN SPECIES OF THE GENUS SYNAPSEUDES 



a\ Inner border of first joint of first antenna with conspicuous spines. 

 6\ Dorsal surface of pleotelson smootli ; Cape Verde Islands. 



heterocheles ( VanhofEen ) 

 b'. Dorsal surface of pleotelson with 3 setiferous elevated swellings ; 



California intumescens, new species 



a^ Inner border of first joint of first antenna smooth, lacking spines ; 



Hawaii ininutus Miller 



LITERATURE CITED 



BooNE, Pearl Lee. 



1923. New marine tanaid and isopod Crustacea from California. Proc. Biol. 

 Soc. Washington, vol. 36, pp. 147-15G. 

 Miller, Milton Albert, 



1940. The isopod Crustacea of the Hawaiian Islands (Chelifera and Valvif- 

 era). Occ. Pap. Bernice P. Bishop Mus., vol. 15, No. 26, pp. 295-321, 

 9 figs. 

 Vanhoffen, Ernst. 



1914. Die Isopoden der Deutschen Siidpolar-Expedition 1901-1903. Deutsche 

 Siidpolar-Exped., vol. 15, Zool. 7, pp. 449-598, 132 figs. 

 Whitelegge, Th. 



1901. Isopoda I. Crustacea Part 2. Scientific results of the trawling 

 expedition of H. M. C. S. Thetis ofE the coast of New South Wales. 

 Mem. Australian Mus., vol. 4, pt. 3, pp. 201-246, 23 figs. 



U. S. GOVERNMENT PRINTING OFFICE: 1949 



