38 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 73 



Ishikawa remarks : " I consider the specific name feiiiic is to be used for the 

 species, even when the generic name was changed. The reason is the older name 

 has the right of priority in the present case when the kochlcri and fcmte are 

 used for one and the same species." 



K. Jordan remarks : " Tromikosoma has absorbed an older generic concept 

 which has no valid generic name. The genotype of Tromikosoma thus extended 

 remains the same as before, T. kochlcri. Tromikosoma was not proposed as a 

 substitute for the preoccupied name Echinosoma." 



Peters remarks : " kochlcri is the type of Tromikosoma by monotypy ; it was 

 not one of the originally included species of Echinosoma and is of course excluded 

 from consideration in determining the type of the latter genus." 



Richter remarks, " koehleri ist der Typus von Tromikosoma Mortensen, 1903 ; 

 tcmic ist nicht der Typus von Tromikosoma Mort., 1903, sondern von Echino- 

 soma Pomel, 1833 ; — gleichgiiltig, welches das Verhaltnis der Genus-Namen 

 Tromikosoma und Echinosoma zu einander ist. Da die Gattung Tromikosoma 

 Mortensen, 1903, bei ihrer Aufstellung monotypisch war, ist kochlcri ihr Typus. 

 Daran dndcrt sich nichts durch die Frage, ob der Name Tromikosoma (unaban- 

 derlich mit dem Genitypus kochlcri verbunden) an die Stelle eines anderen 

 Gattung-Namens zu treten hat (z. B. an die Stelle von Echinosoma mit dem 

 Genotypus tcnue) oder nicht. In Obereinstimmung mit meinem KoUegen Dr. 

 R. Mertens." 



Silvestri remarks : " because the genus author designated that newer and not 

 another." 



Stiles remarks : " kochlcri is the type species of Tromikosoma, and this point 

 is not influenced by any restriction or by any broadening of the generic concept." 



Stone remarks : " When two genera are united, such action in no way affects 

 the type of either. The broader genus thus formed will take the oldest available 

 name based on any included species, as its name; and such name retains the 

 type previously established as its type." 



On basis of the foregoing informal vote and the arguments pre- 

 sented, the Commission adopts as its Opinion the following : The type 

 species of Tromikosoma is T. kochlcri. 



Opinion prepared l)y Stiles. 



Opinion concurred in by twelve (12) Commissioners: Apstein, 

 Bather, Cabrera, Chapman, Esaki, Fantham, K. Jordan, Peters, 

 Richter, Silvestri, Stiles, Stone. 



Opinion dissented from by two (2) Commissioners: Ishikawa, 

 Pellegrin. 



Not voting, six (6) Commissioners: Boliver, Handlirsch, Horvath, 

 Stejneger, Stephenson (successor Cahiian). 



Cabrera adds : 



This case is clear. Tromikosoma being a monotypic genus, its single species, 

 kochlcri, is the type without any shadow of doubt. The question if kochlcri 

 is or is not the same species as tcnuc, is quite a different point, and one to be 

 discussed, not i)y the Nomenclature Commission, but by echinodermatologists. 



