1270 THE VOYAGE OF H.M.S. CHALLENGER. 



553). For a definition of the "Amphipoda Hyperiidea," see Note on Bovallius, 1887 

 (p. 587) ; and for notices bearing more or less directly on the definition of the group, sec 

 Notes on Glaus, 1879 (pp. 487, 490) and 1887 (p. 596). 



Family Scinid^e. 



Dana in 1852 placed the genus Clydonia in a subfamily of the Corophidae which he 

 constituted to receive it, and named Clydoninae ; Bovallius, having in 1885 established 

 the identity of the genus Clydonia with the earlier Tyro, in 1887 changed the subfamily 

 into a famdy, and named it the Tyronidce ; since Tyro itself falls to the earlier name 

 Scincl, it will be convenient to name the family Scinidae. The definition given by 

 Bovallius 1 for the family is as follows : — 



" Head small. Eyes small as in the Gammarids. First pair of antennas straight, 

 styliform. Second pair of antennae angularly bent, fixed at the inferior side of the head. 

 Mandibles without palp. The seventh pair of pereiopoda [fifth peraeopods] not trans- 

 formed. The inner ramus of the uropoda coalesced with the peduncle." 



Genus Scind, Prestandrea, 1833. 



• 

 1833. Scincl, Prestandrea, Effemeridi scientifiche e letterarie per la Sioilia, tome vi. p. 10. 

 1840. „ 0. G. Costa and A. Costa, Catalogo de' Crost. del Regno di Napoli. 

 1840. Tyro, Milne-Edwards, Hist. Nat. des Crustaees, tome iii. p. 80. 

 1849. Clydonia, Dana, Amer. Journ. Sci. and Arts, vol. viii. No. 22, p. 140. 



1851. Sci?ia, Costa, in Hope's Catalogo dei Crostacei Italiani, p. 24. 



1852. Clydonia, Dana, Proc. Amer. Acad. Arts and Sci., vol. ii. 

 1852. „ Dana, Amer. Journ. Sci. and Arts, vol xiv. No. 41. 

 1852. Tyro, Dana, Amer. Journ. Sci. and Arts, vol. xiv. No. 41. 



1852. Clydonia, Dana, U.S. Explor. Exped., vol. xiii. pt. ii. pp. 831, 834. 

 1852. Tyro, Dana, U.S. Explor. Exped., vol. xiii. pt. ii. p. 980. 

 1862. Clydonia, Spence Bate, Brit. Mus. Catal. Amph. Crust., p. 284. 

 1862. Tyro, Spence Bate, Brit. Mus. Catal. Amph. Crust., p. 308. 

 1877. Clydonia, Streets, Bulletin U.S. Nat. Mus., No. 7, p. 124. 

 1882. ,, Sars, Oversigt af Norges Crustaceer, pp. 20, 76. 



1885. Tyro, Bovallius, On some forgotten Genera among Amph. Crust., p. 12. 



1886. Tyro, Gerstaecker, Bronn's Klassen und Ordnungen, Bd. v. Abth. ii. p. 491. 



1886. Clydonia, Gerstaecker, Bronn's Klassen und Ordnungen, Bd. v. Abth. ii. p. 498. 



1887. Tyro, Bovallius, Systematical List of Amph. Hyper., Bihang till K. Svensk. Vetensk. 



Akad. Handl., Bd. 11, No. 16, p. 3. 

 1887. „ Bovallius, Arctic and Antarctic Hyperids, Vega-Exped., Bd. iv. p. 551. 



In the Systema Entomologiae, p. 399, J. C. Fabricius in 1775 defines the Agonata 

 as having " Os palpis quatuor, aut sex. Maxilla inferior nulla." Among these he 



1 Arctic and Antarctic Hyperids, p. 551. 



