NO. 3574 COPEPOD CRUSTACEANS — LEWIS 109 



primary reason for separating the two species. Milne-Edwards (1840) , 

 however, does not provide a figure of C. scutatus and does not list 

 the host from which the female specimen(s?) (male unknown) was 

 collected. Further, C. scutatus is not given in a list of Milne-Edwards' 

 species contained m the Paris Museum where most of his specimens 

 were deposited (list sent to Dr. R. Parker, Fisheries Research Board of 

 Canada, Nanaimo, British Columbia). Because of the lack of a 

 definitive description and specimens of C. scutatus, it is felt best to use 

 the name only as a questionable entry in the synonymy of C. cory- 

 phaenae. 



The deletion of Brian, 1935, and Barnard, 1955, from the synonymy 

 is based on Pillai's 1962b discussion of the synonymy of C coryphaenae. 

 Shiino, 1959b, also lists Caranx pelagica, Seriola dorsalis, Rachycentron 

 canadus, and Caranx hippos as reported hosts. 



Caligiis quadratus Shiino 



Figures 40-42 



Caligus productus. — Rathbun, 1884, p. 487. — Wilson, 1905b, p. 597, pi. 14, figs. 



162-170. 

 Caligus coryphaenae. — Yamaguti, 1936a, p. 5, pi. 4, figs. 162-170. 

 Caligus quadratus Shiino, 1954c, p. 26, fig. 1; 1959b, p. 8, figs. 3-5; 1960a, p. 



472.— Yamaguti, 1963, p. 59, pi. 75, fig. 4. 



Distribution and hosts. — 8 host records: 



locality host reference 



Japan Neothynnus macropterus 



Histiophorus orientalis 



Coryphaena hippurus 



Neothunnus albacora 



Rhinobatus schlegelii Shiino, 1954c, 1959b, 1960a 



"Pacific" Coryphaena hippurus Yamaguti, 1936a 



Atlantic Coryphaena hippurus Wilson, 1905b 



Western North At- Coryphaena species Rathbun, 1884 



lantic 



Material.— Five females and 2 males (USNM 112900) from the 

 gill cavity of Coryphaena hippurus Linnaeus captured at 15°N, 

 155°30'W^ (USFWS, HMS cruise 36, stations 26-27). Two females 

 (1 immature) (USNM 112901) from the gill cavity of C. hippurus 

 Linnaeus captured 120 miles south of Oahu, Hawaii (USFWS). 

 Two females (1 immature) (USNM 112902) from the gill cavity of 

 C. hippurus Linnaeus captured 130 mUes south of Niihau, Hawaii 

 (USFWS, HMS cruise 39). Three females and 1 male (retained by 

 author) from the buccal cavity, external surface and gill cavity of C. 

 hippurus Linnaeus captured near Oahu, Hawaii. 



