REPORT ON THE AMPHIPODA. 1301 



Family Lanceolid.-e, 1887. 



Bovallius, who in 1885 had reinstated Say's genus Lanceola, in 1887 ! established 

 the family Lanceolidae to receive it, with the following diagnosis : — 



"Head small, anteriorly truncated, not tumid. Eyes very small, often indistinct. 

 First pair of antenna? short, high, compressed, fixed at the anterior side of the head. 

 Second pair long angulated, fixed at the anterior side of the head. Mandibles with palp. 

 Three posterior pairs of pereiopoda with retractile dactyli. Seventh pair [fifth peraeopods] 

 not transformed." 



In a subsequent work of the same year Bovallius varied the description as follows : — 



" Head small, not tumid, anteriorly truncated. Eyes small. First pair of antennae 

 tumid. Second pair filiform, not angulated, fixed at the anterior side of the head. 

 Mandibles with palp. Seventh pair of pereiopoda [fifth peraeopods] not transformed. 

 Peduncles of uropoda normal." 



That the lower antennae are not folded as in the Platyscelidae is in agreement with the 

 Challenger species belonging to this family, but neither do the dimensions of the lower 

 antennae in those species agree with the epithet " filiform." 



Genus Lanceola, Say, 1818. 



1818. Lanceola, Sciy, Journ. Acad. Nat. Sci. Philad., vol. i. pt. ii. p. 317. 



1825. ., Desmarest, Consid. gin. sur la classe des Crustac^s, p. 272, note. 



1830. Hyperia {pars), Milne-Edwards, Ann. d. Sci. Nat, tome xx. p. 387 (extr., p. 36). 



1838. „ ,, Milne-Edwards, Hist. Nat. des Anim. sans Vert., tome v. ^d. ii. 



1840. ,, ,, Milne-Edwards, Hist. Nat. des Crust., tome iii. p. 77. 



1840. „ „ Lucas, Hist. Nat. des Crust., p. 234. 



1844. „ ,, De Kay, Zoology of New York, pt. vi., Crustacea. 



1858-74. ,, „ Chenu and Desmarest, L'Encycl. d'hist. nat., Crustac^s, p. 48. 



1862. Vibilia (pars), Spence Bate, Brit. Mus. Catal. Amph. Crust., p. 304. 



1885. Lanceola, Bovallius, Bihang till K. Svensk. Vetensk.-Akad. Handl., Bd. 10, No. 14, p. 3. 



1886. „ Forsstrand, Det arkt. hafsomradets djurgeogr. begransning, p. 40. 



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



Vetensk. Akad. Handl, Bd. 11, No. 16, p. 5. 

 1887. „ Bovallius, Arctic and Antarctic Hyperids, Vega-Exped., Bd. iv. 553. 



1887. ,, Hansen, Malacostraca marina Groenlandise occidentalis, p. 55. 



For the original definition of the genus, see Note on Say, 1818 (p. 102). The British 

 Museum Catalogue, in the description of Say's type-species under the name Vibilia 

 pelagica, speaks of the upper antennae as " reaching to the extremity of the peduncle of 

 the inferior pair," whereas Say's words are " attaining the middle of the third joint of the 

 inferiores"; in the account of the peraeopods, "third pair longest" is evidently a misprint 

 for — third pair longer. Tn 1887 Bovallius gives the following definition of the genus: — 



1 Systematical List of the Amph. Hyper., p. 5. 



