NO. I OPINIONS 68 TO '/'J yi 



OPINION 77 



Thirty-Five Generic Names in Protozoa, Coelenterata, 



Trematoda, Cestoda, Cirripedia, Tunicata, and Pisces 



Placed in the Official List of Generic Names 



Summary. — The following names are hereby placed in the Official List 

 of Generic Names: Protozoa: Arcella. Coelenterata: Hydra. Trema- 

 toda: Hcmiurus, Schistosoma. Cestoda: Anoplocephala, Hymenole- 

 pis, Moniezia, Stilesia, Thysanosonia. Cirripedia : Lepas. Tunicata : 

 Pyrosoma. Pisces: Acipenser, Callionymus, Chimera, Clupea, Coryphxna, 

 Coitus, Cycloptcrus, Cyprinus, Diodon, Gadus, Gastcrosteus, Gobins, Lophius, 

 Mormyrus, Mullus, Murxna, Osmerus, Perca, Salmo, Scomber, Scorpsena, 

 Silurus, Syngnathus, Zeus. 



Statement of case. — A list of 39 generic names, submitted for 

 inclusion in the Official List of Generic, Names, was issued in the 

 Secretary's Circular Letter no. 35 (March, 1917), which was mailed 

 to about 350 zoologists and zoological institutions, and was pub- 

 lished by Monticelli in the Monitore zoologico. In the replies re- 

 ceived questions have been raised in respect to 4 of these names to 

 wit, Esox, Exocostus, Ophidion, and Platessa, and although it is 

 thought that the points can be easily settled these four have been 

 tabled, without prejudice, for further consideration. No objection 

 of any kind has been raised to any of the remaining 35 names. 



Abbreviations 



A. 1=: Proposed for Official List by Apstein, 1915a. [See Opinion 74, 



p. 32.] 

 HSW.= Case has been studied by a Committee from the Helminthological 

 Society of Washington, D. C, is guaranteed and recommended to 

 the Commission by said Society. 

 J. :^ Case has been studied for the Commission by Commissioner David 

 Starr Jordan, and the name recommended by him with the 

 genotype cited, 

 mt. = Monotypic. 

 S. = Secretary of the Commission has verified original generic and spe- 

 cific references, considers the generic name available and valid 

 under the Rules, and considers the type designation correct, 

 tod. = Type by original designation, 

 tsd. = Type by subsequent designation. 

 Bibliographic abbreviations taken from Stiles & Hassall's Index Catalog of 

 Medical and Veterinary Zoology. 



