1890.] " INDEX GB^fBnUM; BT SPECIBRUM ANIMALIUM." 613 



Species "indetfc.," 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 if 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 sjiecies permits of agetieric 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. SchUtze, Org. Polyth. 67. Eh. 1854. 



[acinosa ; creto ; globiilosa ; inhwrens.l 

 acinosa Acernilina, M. Schultze, Org. Folytn. 1854, 67. 

 acula Alveolina, Savi ^- Mcneghini, Cons. geol. Tosc. 1851, 206. 

 Alveolina. A. D. d'Orbigng, Ann. Sci. Nat. vii. 306. Bii. 1820. 



[acuta; boscii ; bulloides ; compressa ; costulata; cylindrica; 

 decipiens ; depressa ; ellipsoidalis ; elliptica ; elongata ; eximia ; 

 fortisii ; etc ] 

 Archiacina, Munier-Chalmas, B. S. geol. Fr. [3] vii. 445. Eh. 1879. 



[armorica ; in unieri . ] 

 arinorica Archiacina (d'Arch.), Mxmier- Chalmas, B. S. g(ol. Fr. [3] vii. 

 1879, 446. [Cyclolina.] 



Cyclolina, d'Archiae, B. S. glol. Fr. [2] xxv. 1808, 376. 



Cyclolina, A. D. d^Orbigny, Foram. lien. 139. Eh. 1846. 



[armorica; oarlnata; cretacea ; duf renoyi ; iinpresBa ; pedunculata; 

 prsealta.] 

 The group and date of the geuuB are shown by the " Eh. 1854 "=Ehizopoda, 

 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 Musi'um (Natural History)— an ofier of considerable 

 value, as it not only renders the MS. easily accessible to those 

 wishing to consult it, but ensiures safety from fire and other destruc- 

 tive agencies. The General Committee of the British Association 



