1896. ] ‘“‘ INDEX GENERUM ET SPECIERUM ANIMALIUM.” 613 
Species ‘‘indett.,” if figured, are included in the index. 
Misprints are quoted only if considered liable to cause confusion. 
The following is an example of the Index as proposed to be 
carried out. The inclusion of an alphabetical list of species under 
each genus name is a matter for consideration, if ever the MS. 
comes to the printing office. It can be adopted or rejected at 
option, and it adopted the duplicate set of slips will be available 
for the purpose. 
In arranging the Index for printing it is proposed to print one 
alphabetical list from beginning to end; the species names and the 
genus names falling into one order according to the arrangement 
of their spelling. The following are the reasons for arranging 
the work under species and not under genera, as in the ‘ Index 
Kewensis ’:— 
1. No synonymy of species is attempted: that depends on the 
idiosyncrasy of the systematist. 
2. Any attempt at specific synonymy would be fatal to progress, 
as experience shows that vast changes may take place in a 
single year. 
3. An arrangement under species permits of a generic synonymy, 
for by running the eye down the second column of the 
printed work, it will be possible to ascertain the various 
generic names with which a particular species name has been 
connected. 
Acervulina, M. Schultze, Org. Polyth. 67. Rh. 1854. 
[acinosa ; cretz ; globulosa ; inhzrens.] 
acinosa Acervulina, M. Schultze, Org. Polyth. 1854, 67. 
acuta Alveolina, Savi g- Meneghini, Cons. geol. Tosc. 1851, 206. 
Alveolina, A, D. d’ Orbigny, Ann. Sci. Nat. vii. 306. Rh. 1826. 
[acuta; boscii; bulloides; compressa; costulata; cylindrica; 
decipiens ; depressa ; ellipsvidalis; elliptica ; elongata; eximia; 
fortisii ; etc ] 
Archiacina, Munier-Chalmas, B. 8. géol. Fr. [8] vii. 445. Rh, 1879, 
{armorica ; munieri. ] 
armorica Archiacina (d’Arch.), Munier-Chalmas, B. S. géol. Fr. [8] vii. 
1879, 445. [Cyclolina. | 
Cyclolina, @’ Archiac, B. 8. géol. Fr. [2] xxv. 1868, 376. 
Cyclolina, 4. D. d Orbigny, Foram. Vien. 139. Rh. 1846. 
[armorica ; carinata ; cretacea ; dufrenoyi ;impressa; pedunculata ; 
prealta. | 
The group and date of the genus are shown by the “ Rh. 1854” =Ruzzopopa, 
1854. 
From this description of the ‘Index Generum et Specierum 
Animalium,’ it will be seen that a manuscript comprising 130,000 
references is already in existence and is available for daily reference. 
Sir Wm. Flower, Dr. Giiuther, and Dr. Woodward took so 
much interest in the original scheme that they at once offered the 
necessary space and cabinets for the storage of the manuscript at 
the British Museum (Natural History)—an offer of considerable 
value, as it not only renders the MS. easily accessible to those 
wishing to consult it, but ensures safety from fire and other destruc- 
tive agencies. The General Committee of the British Association 
