PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 121 



elements used in the tables. Further, an analysis of the hypothetical 

 thoracic leg is given in table 1. , • ^u 



In the section entitled "Material" for each of the species the 

 abbreviation USFWS means U.S. Fish and Wildhfe Service HMS 

 means the USFWS vessel Hugh M. Smith, CHG the USFWS vessel 



P H dH nihrriH 



dmH 



Figure 1.— Hypothetical thoracic leg showing various armament components 



a: adhesion surface 

 C: heavy fringing plumosities 

 c: light fringing plumosities 

 D: large denticulations 

 d: small denticulations 

 dH: large denticulated spine 

 dm: denticulated membrane 

 dmH: large spine with denticulated mem- 

 brane 

 fm: frilled membrane 

 fmH: large spine with frilled membrane 

 H: large spine 



IP: interpodal plate 



m: membrane 



P: plumose seta 



p: plumose setule 



P': naked seta 



p': naked setule 



pH: large plumose spine 



Q: seta plumose on one side and mem- 

 branous on other 



qH: large spine plumose on one side and 

 membranous on other 



rh: spinule 



s: solitary hairlike process 



h : small spine 



Table 1.— Armature of hypothetical thoracic leg shown in figure 1 



