MOLLUSGA (Continued) 



Species 



Chromosome Number 



2n n Remarks 



Observer 



References 



M. trunculus 



Nassa nitida 



Heritina fluviatllls 



Paludina vivipara 



Pisania maculosa 



Potamopyrgu s ( Hydrobia ) 

 jenkinsi 



Pterotrachea mutica 



Theodoxia fluvlatilis 



Tulotoma magnifica 



Yalvata plscinalis 



19s 

 20 o 



16s 



lUs 



14o 

 lton 



30-Ulm 

 32m 



18s 

 2k 



20 s 



Ca20s 



11-12$(1) 



l^(l) X-0$ 



1^(1 ) x-o$ 



10o_(l) X-O? 



l6$(l) 



84(11) 



7<?(l,lD — 



7oU) — 



16$(1) X-o£ 



Schitz '20 



Tuzet '30 



Tuzet '30 



Alexenko 

 '28 



Aue roach 

 '96 



Meves 

 •01, '03 



Popoff 

 •07, '08 



Tuzet '27 

 Peacock '40 



l6o(l,ll) 16 in S Boveri '90 

 pronucleus 



94(11) X-Y5 



10o\l) 



Tuzat '30 



Pollister & 

 Pollister 'kO 



Artom '33 



Von Kemnitz 



nk 



Furrow '35 



Xus chakewi t s ch 

 '13 



Pollister 

 •39 



Pollister & 

 Pollister »*|0 



Pollister & 

 Pollister *k0 



Pollister & 

 Pollister '40 



A.Z.E.G. 59. 

 A.Z.E.G. 70. 

 A.Z.E.G. 70. 



Z.Z.M.A. 8. 



Jena Z. 23. 



Verh. Anat. G-eB. 

 1901;A.M.A. 61. 



A.M.A. 70; 

 B. Zb. 28. 



A.Z.E.G. 67. 

 Nature 146 



Jena Z. 1?. 



A.Z.S.G. 70. 

 A.R. 78. Suppl. 



Rend. Acad. 

 Lincei (6) 17. 



A. Zf. 12. 



Z.Z. M.A. 22. 

 A. Zf. 10. 



Proc. Nat. Acad. 

 Sci. 25. 



A.R. 78. Suopl. 



A. R. 78. Suppl. 

 A.R. 78. Suppl. 



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