V1. 
tenth edition, 1758-59,* should be accepted as the basis, it being 
the first in which Linneus followed out the definite plan of binominal 
nomenclature, with diagnoses, and synonyms. By accepting this 
latter view we do away with the anomaly of “‘ exceptions,’ and include 
all books of importance that deal with nomenclature on the binominal 
system. he sole noteworthy exception known to me is Clerck’s 
“Aranei Suecici”” which was published in 1757. The authorship of a 
specific name, however, is of such slight importance that the book 
need not be considered here. 
In the Xth edition of the “SYSTEMA NATURA,” Linneus 
includes the Sponges among the Cryptogams ; in the XIIth they are 
placed among the Zoophytes. ‘There are a few changes of nomen- 
clature known to me, as will be seen by the following list :— 
becomes in XII. ed. 
Acarus scorpioides 
Alcedo todus 
Cantharis lampyris 
Columba asiatica 
Columba macroura 
Coracias galbula 
Coracias oriolus 
Coracias xanthornus 
Crax nigra 
Curculio chinensis 
Curculio rectirostris 
Dermestes pisorum 
Ephemera mutica 
Hemerobius formicaleo 
Hystrix brachyurus 
Leptura necydalea 
Madrepora rubra 
Murex scabriculum 
Nautilus crista 
Ophidion macrophthalmum 
Parus pipra 
Pegasus volitans 
Perea rhomboidalis 
Phaleena vulpinaria 
Priapus humanus 
Rallus lariformis 
Rana variegata 
Silpha bipunctata 
Struthio americanus 
Struthio cucullatus 
Phalangium acaroides 
Todus viridis 
Lampyris hespera 
Columba leucoptera 
Columba migratorius 
Oriolus baltimore 
Oriolus galbula 
Oriolus icterus 
Crax alector 
Bruchus pectinicornis 
Curculio druparum 
Bruchus pisi 
Ephemera striata 
Myrmeleon formicarium 
Erinaceus malaccensis 
Necydalis glaucescens 
Isis nobilis 
Voluta cancellata 
Turbo nautileus 
Cepola rubescens 
Pipra leucocilla 
Pegasus draconis 
Sparus rhomboides 
Phaleena (B.) russula 
Holothuria priapus 
Sterna neevia 
Rana bombina 
Silpha bipustulata 
Struthio rhea 
Didus ineptus 

* N.B.—In a letter to Mr. John Ellis, dated 8 Feb., 1758, Linnzeus says the 
first vol. of the 10th ed. of the Systema was just published. We 
can therefore safely date Zoological Nomenclature from Ist Jan., 
1758. 
