410 
William Evans Hoyle: 
Heteroteuthis, Verrill, 1880. H. tenera , Vll., 1880 [monotypic] (= Semirossia). 
Histioceraeus Steenstrup, 1880 \nomen nudum, no species mentioned]. 
Histiopsis Hoyle, 1885. H. atlantica, Hoyle, 1885 [monotypic] (— Histioteuthis) 12 
Histioteuthis, d’Orbigny, 1846. Cranchia bonellii , Ferussac, 1835 [monotypic]. 13 
Hoylea, de Kochebrune, 1886. Hallia sepioidea Valenciennes, MS. 
Hyaloteuthis, Gray, 1849. Sepia pelagica, Bose, 1802 [monotypic]. 
Hyaloteuthis, Pfeffer, 1884. Loligopsis vermicularis, Rüppell, 1844 [monotypic] (— JDoratopsis). 
Idiosepius, Steenstrup, 1881. I. pygmaeus, Stp., 1881 [monotypic]. 
Illex, Steenstrup, 1880. Loligo illecebrosa, Lesueur, 1821 [species first named.]. 14 
Japetella, Hoyle, 1885. J. prismatica, Hoyle, 1885 [monotypic]. Brit. Mus. ! 
Leachia, Lesueur, 1821. L. cyclura, Lesueur, 1821 [monotypic]. 
Lepidoteuthis, Joubin, 1895. L. grimaldii, Joubin, 1895 [monotypic]. 
Leptoteuthis, Verrill, 1884. L. diaphana, Vll., 1884 [sp. first named.]. 15 
Lestoteuthis, Verrill, 1880. Onychoteuthis Jeamts chatica, Middendorf, 1849 [designation] (—Gonatus). 
Z/iocranchia, Pfeffer, 1884. L. brockii, Pfeffer, 1884 [sp. first named.]. 
Lituina, Link, 1806. Nautilus spirula, Linn., 1758 [monotypic] (== Spirula). 
Lituus, Gray, 1849. L. laevis, Gray, 1849 [sp. first mentioned) (— Spirula). 16 
Loligo 9 Schneider, 1784. L. vulgaris , Lamarck, 1798 [sp. first named]. 17 
Loligopsis, Lamarck, 1812. L. peronii, Lmk., 1812 [monotypic]. 
Loliolus, Steenstrup, 1856. L. typus , Stp., 1856 [designation]. 18 
Lolliguneula , Steenstrup, 1881. Loligo brevis, Blainville, 1823 [monotypic]. 
Lycoteuthis, Pfeffer, 1900. L. jattai, Pfr., 1900 [monotypic]. Hamburg Mus.! 19 
Martialia, Rochebrune & Mobille, 1889. M. hyadesi, M. & R., 1889 [monotypic] (— JDosidicus). 
n Histiopsis is beyond all reasonable doubt the young of some species of Histioteuthis. 
13 d’Orbigny calls this species “Bonelliana”) but there seems no reason to depart from the form originally 
proposed by Förussac. 
14 In default of any other indication I venture to designate the species first named by Steenstrup as the type 
of the genus. 
15 The name is preoccupied; = Doratopsis de Rochebrune, 1884. 
16 So far as I can ascertain Gray is the first post-Linnean writer to use Lituus in a generic sense with any 
definition on indication. The word occurs in the „Museum Calonnianum u , p. 62, but without definition and among the 
„Terrestres“ or land mollusca. The word was also used by Martyn „Universal Conchologist u in 1784, fig 27, for a 
Pulmonate. 
17 In determining what should be regarded as the type of this genus I have been guided by the following con- 
siderations. The genus was created by Schneider (1784), but he does not mention any type though his opening sentence 
(p. 110) „Dies soll nach Linnö die große Art des Rondelet und Needham sein“ leaves no doubt that he had the 
Sepia loligo of Linn6 in mind. The difficulty consists in knowing what species this was. I have looked up the various 
authorities referred to by Linnö and find that they include a great variety of forms; in fact they comprise all those 
with cylindrical body and fins. Pennant (1777) does not help us for though his figure ipl. 27j is an undoubted Loligo 
(I believe Ij. forhesi Stp.) his references show that his Sepia loligo like that of Linne included also forms referable 
to Ommastrephes. Lamarck (1798, 1799) erects a genus Loligo, apparently independent of Schneider, but with the 
same characters, and names his first species L vulgaris, with the remark „II est vraisemblable que Linne n’a point 
connu cette espöce”. Under these circumstances the only reasonable plan occurs to me to be to regard L. vulgaris 
Lamk. as the type of his genus and therefore of that of Schneider. This is practically what has been done by most 
subsequent writers though I am not aware that anyone has stated the fact in so many words. 
18 The names (typus and affinis) given to the two species first described leave no doubt as to which the 
author regarded as the type. ' 
19 Pfeffer has recently identified this species with Enoploteuthis diadema Chun, 1900. 
