﻿152 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



lANIROPSlS MONTEREYENSIS, new species 



Figures 68, G9 



Holotype. — Male, length 3.3 mm., width 1.0 mm. 



Allotype. — Ovigerous, length 3.6 mm., width 1.2 mm. 



Diagnosis. — Cephalon with a short conspicuous triangulate rostrum. 

 P^yes red in life. Pleotelson ovate, lacking lateral spinelike serra- 

 tions but bearing several long setae. Uropods elongate, as long as 

 or slightly longer than pleotelson. First antennal flagellar articles 

 subequal in length. Each male first pleopod bifurcating at lateral 

 apex. 



Character of hody. — Covered with scattered black chromatophores. 



Second antenria. — Flagellum with about 91 articles. Length 

 slightly exceding body length. 



First maxilla. — Outer lobe Avith 12 setae, inner lobe with 5 setae. 



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

 inner lobe with about 14 setae. 



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

 teeth, setal row with three plus one setae. Right mandible incisor 

 with five teeth, lacinia lacking, setal row with six setae. 



Uropods. — Very elongate, peduncle about as long as inner branch. 



Types. — The holotype, allotype, and 18 paratypes were collected at 

 the type locality, Pescadero Point, Monterey County, Calif., July 19, 

 1947, by John Davis; lowest intertidal zone under sponge-encrusted 

 rock. Type specimens have been deposited in the following institu- 

 tions : 



United States National Museum, holotype (No. 89551) ; allotype 

 and 35 paratypes. Allan Hancock Foundation, 2 paratypes. Uni- 

 versitets Zoologiske Museum, Oslo, Norway, 2 paratypes. Rijksmu- 

 seiun Van Natuurlijke Historie, Leiden, Holland, 2 paratypes. Pacific 

 Marine Station, 12 paratj'^pes, accession numbers 1325-1326 Arth. 



Geograpical distribution. — Marin to Monterey Counties, Calif. 



Material exaimned. — In addition to the above-mentioned specimens 

 the following were examined, all from California localities: 



Marin County: Billon Beach., on beach in Macrocysth holdfast, 

 October 10, 1947, R. J. Menzies collector, 1 paratype. Monterey 

 County: Caiinel Cove., under rocks, lower zones, July 6, 1947, John 

 Davis collector, 5 paratypes; July 1947, T. E. Bowman collector, 5 

 paratypes; Point Pinos, zones 3-4, July 4 and 12, 1947, John Davis 

 collector, 4 specimens, 3 of them paratypes; Asilomar., lower zones 

 under rocks, July 16, 17, and 21, 1947, John Davis collector, 21 para- 

 types. 



