4 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



Paralectotype— 1 male designated as specimen C, Naturhisto- 



risches Museum, 



Additional specimens.— 2 females from the type-locality desig- 

 nated as specimens 1 and 2 on slides, Naturhistorisches Museum. 



Type-locality.— Graf (1931) reported 4 ^specimens of Phlomedes 

 polae from Pola Expedition Station 90 and 1 specimen from Station 89; 

 both stations are in the Gulf of Suez; all specimens are males. The 

 vial containing specimens of P. polae did not bear a station number; 

 however, as 3 specimens were in the vial, it is probable that aU, and 

 at least 2 of them, are from Station 90 rather than 89. Station 90, 

 therefore, is considered here to be the type-locality; since Stations 89 

 and 90 are close to each other, however, whether the lectotype was 

 collected at one or the other is not of major significance. Females of 

 P. polae, designated by Graf as Philomedes species, were coUected at 

 Station 90. Data concernmg the stations are as follows: 



station latitude longitude collecting depth date collected 



89 28°40'N 32°57'E surface March 31, 1896 



90 28°00'N 33°36'E surface April 1, 1896 



Description of male.— Shell (figs. 1, 2a-e): oval, elongate with 

 greatest height near middle, prominent rostrum and shallow rostral 

 incisure (fig. la); anterior margin of rostrum and anteroventral 

 margin of shell with scaUoped outhne formed by cresent-like marginal 

 dentlculations; alate shield projecting laterally and anteroventrally 

 from behind rostral incisure, partly covering incisure, flap strongly 

 sclerotized anteriorly (figs. lc,f). Surface of valves with h-regular 

 polygons; polygons with pebbly texture appearing as minute polygons 

 under high magnification (figs. le,k). Posterior dorsal margin with 

 Unear hinge depressed below outUne of shell (figs. 2b,c); hmge not 

 visible m lateral view except by transmitted light. Posterior hinge 

 element of each valve consisting of angular sclerotized process (figs. 

 2c,d); medial hinge element straight; anterior hinge element not 

 prominent. Left valve broadly overlapping right valve along antero- 

 dorsal margin. About 20 individual muscle scars (partly obscured 

 by muscles in specimen examined) clustered behind and below middle 

 of valve; small scar and large oval hyahne spot situated some distance 

 above others; 2 large and 4 smaller scars situated below anterior hmge 

 element (figs. la,i,j). Inner lamella broad with vestibule; no parallel 

 striations or Ime of concrescence observed on inner lamella. Selvage 

 with wide, corrugated, lamellar prolongation having fringe of slender 

 spines along outer margin. Six long hau'S bearing secondary spines, 

 forming row on inner lamella behind rostrum (figs. lg,h); inner lamella 

 ventral to rostral incisure with small plumose hair, foUowed by wide 

 space and then about 5 plumose hah's (fig. 2a); about 30 hau-s on 

 postero ventral part of inner lamella (figs. 2d,e). 



