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PROCEEDINGS OF THE NATIONAL, MUSEUM 



A(7 SuAb PrA 



FiGUKE 42. — Diagrammatic sketch of Polyipnus showing the names applied to the various 

 series of photopliores fouD<l in Arijyroiif Iccus nn<l I'oUiiiinus as used in this paper: A, 

 Anal organs; Ah, abdominal or;;an8 ; Br, branchlostoiral ortians; Is, or^rans on isthmus; 

 L, lateral organ; PoO, postorbital organ; PrA, preanal organs; PrO, preorbital organ; 

 PrOp, preopercular organ; BbC, subcaudal organs; 8uA, supra-anal organs; SuAb, 

 supra-abdominal organs; SuOp, subopercuiar organ; SuJ', suprupectoral organs. 



Figure 43. — Polyipnua uniapinus, new species : Holotype (U. S. N. M. no. 103153). 



