OcTOBER 6, 1899. ] 
adopt some names which are preoccupied, but 
in this respect there is a marked improvement 
in the latter part of the catalogue. The selec- 
tion of the best known designation, regardless 
of whether the name is preoccupied or ante- 
dated, is likely to lead to more trouble than 
convenience in the long run. Changes in 
names are always objectionable, particularly in 
higher groups, but it is safe to say that nearly 
5 per cent. of all the genera and subgenera in 
this catalogue are likely to undergo change 
within afew years. Dr. Trouessart might have 
prevented much trouble for students in future 
by making the changes now demanded by 
the law of priority. Even if he preferred to 
adopt the other course in the body of the list, a 
table might have been inserted in the appendix 
showing the earliest names of groups for which 
he had selected the best known designation, 
but even this seems to have been impracticable 
on account of the undue length of the appendix. 
Without attempting to give sucha table here, 
it will suffice to illustrate this point by men- 
tioning 50 genera and subgenera which have 
not been corrected in the appendix. It should 
be explained, however, that these do not by 
any means include all the names which rest on 
an unstable basis. Full references are added, as 
some of the genera are not given in the catalogue, 
although the majority of them are mentioned in 
synonymy with merely authorities and dates. 
Page 4. For Siamanga, 1843—substitute Sym- 
phalangus Gloger, Hand- u. Hilfsb. Natur- 
gesch., I., p. 34, 1841. 
P. 44. For Brachyurus,* 1823—Cacajao Les- 
son, Species des Mamm., pp. 181-183, 1840. 
* Trouessart’s Brachyurus contains two subgenera : 
A, Ouakaria Gray, 1849 and B, Brachyurus. Since 
Brachyurus Spix, 1823, is preoccupied by Brachyurus 
Fischer, 1813, a group of field mice, the genus be- 
comes Cacajao Lesson, 1840, and subgenus A, Ouakaria 
also becomes Cacajao both being based on Simia me- 
lanocephala. Subgenus B, Brachyurus including the 
redfaced species, if really worthy of separation, ap- 
parently requires a new, name and may be called 
Cothurus (docked tail). Quakaria is not available for 
this group as it has already been restricted to the 
blackheaded forms and Cercoptochus Gloger, 1841, 
based on the uakaris in general, must be restricted 
to the same group since it was proposed before any of 
the redfaced species had been described. 
SCIENCE. 
493 
P. 44. For subgenus Brachyurus Trouessart— 
Cothurus nom. noy. Type Brachyurus calvus 
Geoff. 
P. 46. For Chrysothrix, 1835—Saimiri Voigt, 
Cuvier’s Thierreich, I., p. 95, 1831. 
P. 47. For Nyctipithecus, 1823—Aotus Hum- 
bolt, Recueil Obs. Zool. Anat. Comp., I., pp. 
806-811, 358, 1811. 
P. 62. For Cheiromys, 1799—Daubentonia 
Geoffroy, Décad. Philos., IV., p. 193, 1795. 
P. 66. For Hemigalago, 1857—Galagoides 
Smith, 8. Afr. Quart. Journ., 2dser., II., p. 32, 
1833. 
P. 84. For Cynonycteris, 1852—Rousettus 
Gray, London Med. Repos., XV., p. 299, 1821. 
P. 90. For Megaloglossus,* 1885—Trygenyc- 
teris Lydekker, in Flower & Lydekker’s, 
Mamm. Living & Extinct, p. 655, 1891. 
P. 185. For Furia,* 1828—Furipterus Bona- 
parte, Icon. Fauna Italica, I., fase. X XI. (under 
Plecotus auritus), 1837. 
P. 149. For Mystacina,* 1843—Mystacops 
Lydekker, in Flower & Lydekker’s, Mamm., 
Living & Extinct, p. 671, 1891. 
P. 152. For Macrotus,* 1848—Otopterus. 
Lydekker, in Flower & Lydekker’s, Mamm., 
Living & Extinct, p. 678, 1891. 
P. 153. For Lophostoma, 1888—Tonatia Gray, 
Griffith’s Cuvier, Anim. Kingdom, V., p. 71, 
footnote, 1827. 
P. 155. Tylostoma,* 1855—Anthorhina Ly- 
dekker, in Flower & Lydekker’s, Mamm., 
Living & Extinct, p. 674, 1891. 
P. 156. For Carollia,* 1888—Hemiderma Ger- 
vais, Expéd. Comte de Castelnau Am. du 
Sud, Mamm., p. 43, 1855. 
P. 158. For Ischnoglossa,* 1860—Leptonyc- 
teris Lydekker, in Flower & Lydekker’s, 
Mamm. Living & Extinct, p. 674, 1891. 
P. 203. For Mygale, 1800—Desmana Gilden- 
stadt, Beschaft. Berliner Gesellsch. Naturf. 
Freunde, III., p. 108, 1777. 
P. 212. For Centetes, 1811—Tenrec Lacépéde, 
Buffon’s Hist. Nat., Didot ed., Quad., XIV., 
p. 156, 1799. 
P. 248. For Cercoleptes, 1811—Potos Cuvier 
& Geoff., Mag. Encyclopédique, II., p. 187, 
1795. 
P. 287. For Enhydra,* 1822—Latax Gloger, 
* Preoccupied. 
