XO. 8 OPINIONS 124 TO 133 23 



OPINION 127 



Suspension of Rules for Lcpidocyclina Gumijel, 1868, type 

 Numiiiiilites iiiautclli 



Summary. — Complying with expert advice from specialists in the group 

 involved, the Commission herewith Suspends the Rules and places Lt-pidocyclina 

 Giimbel, 1868, type Nnmmulitcs mantcUi, in the Official List of Generic Names, 

 with Cycloslphon Ehrenberg, 1856, type NiDiunulilcs 'lUautcUi. as objective 

 synonym. The consultants agree, almost unanimously, that to apply the Rules 

 in this case would produce greater confusion than uniformity. 



Statement of case. — Commissioner Chapman of Melbourne, Aus- 

 tralia, recommends that the Rules be suspended in the case of Lepi- 

 docycUna, 1868, vs. CyclosipJion, 1856. 



Discussion. — According to the evidence verified ])y the Secretary 

 the nomenclatorial premises in the case of CyclosipJion. 1856. versus 

 Lcpidocyclina, 1868, are very clear. 



Cyclosiplion Ehrenberg, 1856, Ueber den Griindsand, K. Akad. 

 Wiss., Berlin Abhandl., fiir 1855, p. 145, is monotypic, being based 

 solely upon Nuninntlites mantclli. 



Lepidocyclina Giimbel, 1868, Beitrage zur Foraminiferen fauna der 

 nordalpinen Eocangebilde, K. bay. Akad. Wiss., m.-])., CI. Kd. 10. 

 no. 2, pp. 689 and 717, was originally published as a subgenus of 

 Orbitoidcs and contained three species, i. e.. L. inantclli Morton, 

 L. dilatata Michelotti, and L. hurdigalcnsis Giimbel. No type species 

 was designated, indicated or intimated, directly or indirectly. 



Douville, i8q8. Bull. Soc. Geol. France, ser. 3, vol. 26, p. 594, defi- 

 nitely designated Niiininnlitcs ntantclli as genotype, as correctly stated 

 by Galloway, 1928, Journ. Paleontol.. vol. 2, p. 65, and as accepted 

 by Vaughan, 1929, p. 29. 



As both generic names are based upon the same type species they 

 are objective synonyms regardless of any subjective interpretation 

 in respect to their structure (we name objects, not our conception of 

 those objects). On this account Galloway, 1928, pp. 46-64, logically 

 accepted Cyclosiplion in preference to Lepidocyclina. 



The Commission i.s now requested to suspend the rules and to vali- 

 date Lepidocyclina in place of Cyclosiplion. 



On accotmt f)f the general adoption of Lcpidocyclina and its im- 

 portance in paleontology the Secretary has referred tliis case to various 



