84 



IOWA ACADEMY OF SCIENCES. 



TABLE II. SEXUAL CONDITION. 



Sperm 

 Rioe in 



Ova Ripe in 



Gills 

 Filling in 



Portion of Gills Occu- 

 pied by Marsupiuna 



Old 

 Glochidia 

 Found in 



Quadrula niultiplicata 

 Quadrula tuberculata. 

 Quadrula metanevra.. 

 Ouadrula lachryTiosa. 

 Quadrulaasperrima.-- 

 (Juadrula pustulata... 

 Quadrula pustulosa.-- 



Quadrula plicata 



Quadrula trigona 



Quadrula rubiginosa.. 



Quadrula ebena -- 



Unio gibbosus 



Unio complanatus 



Alasmodonta confragosa 

 Alasmod'ntacomplanata 

 Alasmodonta rugosa 

 Alasmodonta marginata 

 Alasmodonta undulat 

 Alasmodonta tap paniana 

 Strophitus edentulus — 



Anodonta imbecilis 



Anodonta suborbiculata 



Anodoata grandis 



Anodonta corpulenta — 



Obliquaria reflexa 



Plagiola securis 



Plagiola elegans 



Plagiola donaciformis... 



Lampsilis parvus 



Lampsilis ellipsis 



LampsUis ligamentinus. 



Lampsilis luteolus 



Lamp=ilis nasutus 



Lampsilis anodontoides 



Lampsilis rectus 



Lampsilis ochraceus... 

 Lampsilis ventricosus. 



Lampsilis alatus 



Lampsilis laevissimus. 

 Lampsilis gracilis 



Julv 



May 



July 



July 



July 



S May, July 

 } Oct 



May . 



July 



May, July. 

 July 



July, Aug. 



y 



July. 



July. 



July. 



May. 



July. 



July 



July, 



July 



Aug 



July 



Julv 



May 



July, Aug. 

 July, Aug. 

 Aug 



Whole, all four... 

 Whole, all four... 

 Whole, all four... 

 Whole, all four... 

 \A hole outer pair 

 Whole outer pair 



Aug 



Aug 



July 



)uly 

 Aug 

 July 



Whole outer pair .. 

 Whole outer pair .. 

 Whole outer pair .. 

 Whole outer pair .. 

 Whole outer pair .. 

 Whole outer pair .. 

 Whole outer pair .. 



Mav, July 



July 



May 



May, July 



May. July 



Whole outer pair .. 

 Whole outer pair . . 

 Post. part, outer pair 



July 

 luly, 

 July 

 Aug 

 July 

 July 



May 



May, July 

 May, July 



May, July 

 May, July 

 May, July 



Aug 



July, Aug. 

 July 



Aug 



Julv. Aug 



Aug 



July 



May- July. 



Au 



-Ju 



july-Aug, 

 Mav ■ ■ 



July 



Aug 



May, July. 



Post. 

 Post. 

 Post 

 Post. 

 Host. 

 Post. 

 Post. 

 Post. 

 Post. 

 Post. 

 Post. 

 Post, 



outer [jair 

 outer pair 

 outer pair 

 ouler pair 

 outer pair 

 outerpair 

 outer pair 

 outerpair 

 outerpair 



outerpair 

 outerpair 

 outerpair 



May. July 



Post, part, outer pair Oct 



Nov. , May 

 Nov. 

 Sept. 

 Sept. 



(, Oct. Nov. 

 1 May 

 Oct. 



Oct.',"No"v' 

 M ay 



Nov. 



Oct. 



Nov. 



Oct., Mav 

 I Oct. , Nov. 

 I May 



Oct. 



Nov. 



Nov. 

 , May 



