NO. 3570 PANDARIDAE — CRESSEY 55 



thoracic plates on segment 4. Oral area and associated appendages 

 described by Shiino (1954). Fii-st maxilla as in figure 269. Adhesion 

 pads present but small. 



Leg 1-4 biramose with spine and setal formula as follows: 



Leg 1 endopod (fig. 270) with usual 3 setae but inner and outer 

 short. Sternal plate between legs 1 with a bilobed adhesion pad 

 (fig. 271). Leg 5 (fig. 272) a single lobe with 3 stout spines near tip. 

 Leg 6 incorporated into area of spermatophore attachment and not a 

 separate element. 



Egg strings long and straight. 



Color in life cream with light brown pigment on cephalon. 



Male. — Body form as in figure 273. Total length 6.4 mm (based 

 on an average of 2 specimens). Greatest width 3.6 mm (measured 

 at widest part of the cephalon). Cephalon rounded, about as long 

 as wide. No dorsal plates present. Genital segment (fig. 274) 

 1.6 by 1.4 mm, slightly longer than wide. Posterior corners not 

 markedly produced. Abdomen 2-segmented. Caudal ramus with 

 4 moderately long, plumose setae and plumose along inner margin. 



Oral area and associated appendages as in the female. Adhesion 

 pads somewhat smaller. 



Legs 1-4 biramose. Spine and setal formula as follows: 



Leg 1 (fig. 275) as in the female except that setae on endopod are 

 of equal length in male. Leg 2 (fig. 276) as in female but without 

 patches of stout spinules. Leg 3 with a modification of last endopod 

 segment (fig. 277). Leg 4 as in figure 278. 



Leg 5 (fig. 279) located on midlateral margin of genital segment 

 and consisting of a single lobe with 1 stout spine and 3 plumose setae. 

 Leg 6 (fig. 280) situated near junction of genital segment and abdomen 

 and represented by a single spine and plumose seta. 



Color in life cream, devoid of pigment. 



Discussion. — Echthrogaleus coleo'ptratus is a widely distributed 

 species of copepod and has been reported from a wide variety of 

 sharks. It is generally found on pelagic rather than inshore varieties. 

 It occurs on the body surface of the host, commonly on the fins. 



