﻿134 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



First maxilla. — Outer lobe with 10 apical setae, inner lobe with 4 

 apical setae. 



Second maxilla. — Each of the two outer lobe lappets with 4 apical 

 setae. Inner lobe with 10 apical setae and 3 marginal setae. 



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

 four teeth, setal row with four setae. Right mandible lacking lacinia, 

 incisor with four teeth, setal row with five setae. Palp similar to that 

 figured for Munna stephenseni (fig. 51, /) . 



Gnathopod. — Adult male gnathopods not observed. Subadult male 

 and female gnathopods similar. Propodal inferior margin with one 

 2-pointed seta, carpal inferior margin with four 2-pointed setae. 



Sixth peraeojjod. — Propodus with six 2-pointed setae on inferior 

 margin, none on superior margin. Other peraeopods similar to sixth. 



Vropods. — Ventral branch cylindroid with six blunt projections 

 at apex. Below uropods a suburopodal shelf, having a serrate outer 

 margin, extends posteriorly beyond uropods and is thus visible in 

 dorsal view. 



First mxile pleopods. — Tips laterally expanded into narrow, elon- 

 gate, styliform projections. Posterior margin of each pleopod with 

 three marginal setae. 



Female operculum,. — Apex setiferous, evenly rounded. 



Types. — Holotype (U.S.N.M. No. 89545), allotype, and one female 

 paratype were collected at Tomales Bluff, Tomales Point, Marin 

 County, Calif., bay side, May 23, 1948, by R. J. Menzies. The types, 

 all in the collections of the United States National Museum, were 

 collected in lowest intertidal zones under stones and in Macrocystis 

 holdfast. 



Geographical distrihution. — KJnown only from the type locality. 



Material examined. — Only the types have been examined. 



Remarks. — This species, although resembling Munna hoeckii in hav- 

 ing a distinct dentate suburopodal shelf, differs from that species in 

 lacking spines on the lateral borders of the pleotelson. The uropods 

 and pleopods also differ in the two species. 



This species is named in honor of Dr. Herbert M. Hale, director of 

 the South Australian Museum, who has contributed so greatly to the 

 knowledge of the marine Isopoda of Australia. 



Family JANIRIDAE 



(Cf. Nierstrasz and Schuurmans Stekhoven, Jr., 1930, p. X, e 116) 

 Genus lANIROPSIS G. O. Sars, 1897-99 



laniropsis G. O. Sabs, 1897-99, p. 102 (not Janiropsis, Sars' original spelling being 

 laniropsis) . (Genotype, laniropsis breviremis G. O. Sars, 1899.) 



Diagnosis. — Cephalon, peraeon, and pleon lacking projecting lap- 

 pets, Cephalon lacking a long rostrum. Epimeral plates visible in 



