20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



ing 2 exceptions: tip of maxilliped of P. zygaenae (fig. 98) shaped 

 somewhat differently; endopod of P. zygaenae unarmed; spine and 

 setal formula, otherwise, same as P. katoi. 



Color in preserved material creamy white except for some light 

 brown pigmentation in mature females as indicated in figure 97. 



Male. — Body form as in figure 99. Male indistinguishable from 

 male of P. katoi. Only 1 male of each species was collected. More 

 material of both species might show some differences between the 

 males of these 2 species. Total length of male of P. zygaenae (based 

 on a single specimen) 8.1 mm (length not including setae on caudal 

 rami). Greatest width 4.6 mm. 



Discussion.— Brady described this species in 1883 from Zygaena 

 malleus collected near Cape Verde Islands. In 1907 Wilson placed 

 the species in synonomy with Pandarus satyrus. Wilson examined 

 2 females from Brady's original collection but noted that the cope- 

 pods were so covered with "fish sHme" as to be difficult to study. 

 I received 2 collections of copepods from the same host with enough 

 material to ascertain that these were not P. satyrus but clearly a 

 separate species. A comparison of this new material with Brady's 

 original description and figures prove his species to be valid. The 

 figure of the female by Brady appears to be of an immature form but 

 shows some features consistent with my recent collections, namely, 

 the relative lengths of the dorsal thoracic plates and the fact that 

 the caudal rami are generally held parallel to each other rather than 

 divergent as in most other members of the genus (in preserved 

 specimens) . 



This species is closely related to P. katoi but can be distinguished 

 from it by the relationship of the plates of segment 2 to those of 

 segment 4. P. zygaenae so far has been found only on the genus 

 Zygaena and may well be confined to species of hammerhead sharks. 



Pandarus bicolor Leach, 1816 



Figures 100-108 



Pandarus bicolor Leach, 1816, p. 405; 1819, p. 535.— Desmarest, 1825, p. 339.— 

 Burmeister, 1833, p. 331.— Kr0yer, 1837, p. 202; 1838, p. 34; 1863, p. 261.— 

 Milne-Edwards, 1840, p. 470.— Baird, 1850, p. 288.— Beneden, 1851a, p. 94; 

 1861, p. 148.— Norman, 1868, p. 301.— Olsson, 1868, p. 21.— Richiardi, 1880, 

 p. 149.— Cams, 1885, p. 362.— Bassett-Smith, 1896, p. 156; 1899, p. 466.— 

 Brian, 1898a, p. 12; 1899, p. 3; 1906, p. 55; 1914b, p. 7; 1940, p.ll.— Scott, T., 

 1900, p. 157.— Scott, A., 1904, p. 40.— Norman and Scott, T., 1906, p. 211.— 

 Wilson, 1907, p. 400; 1932, p. 436; 1935b, p. 778.— Scott, T., and Scott, A., 

 1913, p. 95.— Hansen, 1923, p. 36.— Scott, A., 1929, p. 95.— Leigh-Sharpe, 

 1934b, p. 112. — Pesta, 1934, p. 29. — Oorde and Schuurmans Stekhoven, 

 1936, p. 141. — Stephensen, 1940, p. 5. — Rose and Vaissiere, 1953, p. 86. — 

 Barnard, 1955, p. 257.— Nunes-Ruivo, 1956, p. 17.— Causey, 1960, p. 331.— 

 Heegaard, 1962, p. 177. 



