GENERAL SYSTEMATIC BACTERIOLOGY 139 



Recommendation. Certain biological groups which have been proposed dis- 

 tinctly as collective groups, not as systematic units, may be treated for conveni- 

 ence as if they were genera, but they require no type species. Examples: Aga- 

 modistoimmi, Amphistomulum, Agarnofilaria, Agamomermis, Sparc/anum. 



Recommendations. The following words may be taken as generic names. 



a. Greek substantives, for which the rules of Latin transcription (translitera- 

 tion (see Appendix F)) should be followed. Examples: Ancylus, Amphibola, 

 Aplysia, Pompholyx, Physa, Cylichna. 



b. Compound Greek words, in which the attributive should precede the 

 principal word. Examples: Stenogyra, Pleurobrachus, Tylodina, Cyclostomum, 

 Sarcocystis, Pelodytes, Hydrophilus, Rhizobius. 



This does not, however, exclude words formed on the model of Hippopotamus, 

 namely, words in which the attributive follows the principal word. Examples: 

 Philydrus, Biorhiza. 



c. Latin substantives. Examples: Ancilla, Auricula, Dolium, Harpa, Oliva. 

 Adjectives (Prasina), past participles (Productv^) are not recommended. 



d. Compound Latin words. Examples: Stiliger, Dolabrifer, Semifusus. 



e. Greek or Latin derivatives expressing diminution, comparison, resemblance, 

 or possession. Examples: Dolium, Doliolum; Strong ylus, Eustrongylus; Limax, 

 Limacella, Limacia, Limacina, Limacites, Limacula, Lingula, Lingullella, 

 Lingulepis, Lingulina, Lingulops, Lingulopsis; Neomenia, Proneomenia; Buteo, 

 Archibuteo; Gordius, Paragordius, Polygordius. 



f. Mythological or heroic names. Examples: Osiris, Venus, Brisinga, Vel- 

 leda, Crimora. If not Latin, these should be given a Latin termination {Aegiru,s, 

 Gondulia). 



g. Proper names used by the ancients. Examples: Cleopatra, Belisarius, 

 Melania. 



h. Modern patronymics, to which is added an ending to denote dedication. 



a. Names terminating with a consonant taking the ending ius, ia, or ium. 

 Examples: Stelysius, Lamarckia, Kollikeria, Mulleria, Stalia, Kryeria, Ibanezia. 



j8. Names terminating with the vowels e, i, o, u, or y take the ending us, a or 

 um. Examples: Blainvillea, Wyvillea, Cavolina, Fatioa, Bernaya, Quoya, 

 Schulzea. 



y. Names terminating with a take the ending ia. Example: Danaia. 



S. In generic names formed from patronymics, the particles are omitted if not 

 coalesced with the name, but the articles are retained. Examples: Blainvillea, 

 Benedenia, Chiajea, Lacepedea, Dumerilia. 



€. With patronj'mics consisting of two words, only one of these is used in the 

 formation of a generic name. Examples: Selysius, Targionia, Edwardsia, 

 Duthiersia. 



f . The use of proper names in the formation of compound generic names is ob- 

 jectionable. Examples: Eugrimmia, Buchiceras, Heromorpha, Mobiusispongia. 



i. Names of ships which should be treated the same as mythological 

 names (Vega) or as modern patronymics. Examples: Blakea, Hirondellea, 

 Challengeria. 



j. Barbarous names, that is, words of nonclassic origin. Examples : Vanikoro, 

 Chilosa. Such words may receive a Latin termination. Examples: Yetus^ 

 Fossarus. 



