258 V. S. BUREAU OF FISHERIES 



2020. Pneumatophorus grex (Mitchill). Chub mackerel; Tinker mackerel; 



Easter mackerel; Thi7nhle-eyed mackerel; Spanish mackerel of England. 

 The small mackerel called by the above names is very abundant on 



our Atlantic coast. It is very close to the similar species of Europe, 



Scomber colias Gmelin. 

 1 Scomber colias Gmelin, Syst. Nat., 1788, 1329, Sardinia; after Cetti. 

 iScomber lacertus Walbaum, Artedi Pise, 1792, 209, Sardinia; after Cetti. 

 tScomber 'pneumatophorus De la Roche, Ann. Mus. Nat. Hist., XIII, 



1809, 315, Balearic Islands. 

 ''.Scomber macropthalmus Rafinesque, Indice, 1810, 20 and 53, Palermo. 

 Scomber grex Mitchill, Trans. Lit. and Phil. Soc. N. Y., I, 1815, 422, 



New York. 

 ^Scomber maculatus Couch, Mag. Nat. Hist., V, 1832, 22, England. 

 iScomber undulatus Swainson, Nat. Hist. Fishes, Amphib., etc., II, 



1839, 409, Sicily. 

 IScomber gracilis Swainson, loc. cit., 410, Sicily. 

 Scomber dekayi Storer, Fishes Mass., 1867, 130, Massachusetts. 



2021. Pneumatophorus diego (Ayres). 



Coast of California; very abundant southward. Perhaps not .separable 



from the Japanese species. Scomber japonicus; some small differences 



apparently permanent. 

 IScomber japonicus Houttuyn, Verhand. HoU. Maatsch. Haarl., XX, 



1782, 331, Japan. 

 "iScomber auratus Houttuyn, loc. cit., 333, Japan. 

 Scomber diego Ayres, Proc, Calif. Acad. Nat. Sci., I, 1856, 101, Santa 



Barbara, Calif. 



2022. Pneumatophorus australasicus (Cuvier and Valenciennes). 



North coast of Australia, from Moreton Baj", Queensland to Lord 

 Howe Island, Hawaii and Socorro Island off the west coast of Mexico. 



Scomber australasicus Cuvier and Valenciennes, Hist. Nat. Poiss., VIII, 

 1831, 49, Austraha. 



Family 162. KATSUW0NID.a:. The victor fishes 



Genus 679. KATSUWONUS Kishinouye. Oceanic bonito. 



Katsuwonus Kishinouye, Scombroid Fish. Japan, Coll. Agric. Tokvo, 

 VIII, 1923, 452 {Scomber pelamis L.). 



2023. Katsuwonus pelamis (Linnaeus). Oceanic bonito. 



Open Atlantic; rarely north to Cape Cod and Bermudas on the Atlantic 



coast. 

 Scomber pelamis Linnaeus, Syst. Nat., ed. X, 1758, 297, "in Pelago inter 



Tropicos." 

 Scomber pelamides Lacepede, Hist. Nat. Poiss., Ill, 1802, 14; after 



Linnaeus. 



2024. Katsuwonus vagans (Lesson). Aku; Pacific bonito. 



Pacific Ocean, Hawaii, .'outhern California, and Japan; inordinately 



abundant in open sea. 

 Thynnus vagans Lesson, Voy. Coquille, ZooL, II, 1828, 162, pi. 32. 

 Thynnus afmis Cantor, Cat. Malay Fishes, 1849, 106. 



(lenus 680. EUTHYNNUS Lutken. 



Euthynnus Lutken, Jordan and Evermann, Fishes North and Mid. 

 Amer., 1896, 868 (Thynnus thunnina Cuvier and Valenciennes = 

 Scomber alletteratus Rafinesque). 

 This genus proves to be quite distinct from Gymnosarda, with which it 

 has been confused. Gymnosarda is an Asiatic ally of Sarda. 



2025. Euthynnus alletteratus (Rafinesque). Little tunny; Bonito. 



Warm seas; north in Gulf Stream to Cape Cod; rather common at 



New York in summer: West Indies; Mediterranean; Japan. 

 Scomber alletteratus Rafinesque, Carattcri, 1810, 46, Palermo. 

 Thynnus leachianus Risso, Eur. Merid., Ill, 1826, 414, Nice. 

 Scomber quadripunctatus Geoffrey St. Hilaire, Descr. Egypt. Poiss., 



1827, pi. 24, fig. 3, Egypt. 

 Thynnus thunnina Cuvier and Valenciennes, Hist. Nat. Poiss., VIII, 



1831, 76, (104), pi. 212, Mediterranean. 

 Thtjnnus brasiliensis Cuvier and Valenciennes, loc. cit., 80 (110), Brazil. 

 Thynnus brevipinnis Cuvier and Valenciennes, loc. cit., 81 (112), 



Mediterranean. 



