01131nam a2200301 i 450099100346932970753620021217151403.0970604s1967 ne a b 001 0 eng db11815012-39ule_instLE00301233ExLDip.to BiologiaengSpoel, S. van der531291Euthecosomata :a group with remarkable developmental stages (Gastropoda, Pteropoda) /by S. van der SpoelGorinchem :J. Noorduijn,1967380 p. :ill. ;24 cmSummary in DutchContinued by the author's Pseudothecosomata, ymnosomata and Heteropoda (Gastropoda)Bibliography: p. 220-2460EuthecosomataGastropodaMollusksClassificationPteropoda.b1181501207-07-1118-12-02991003469329707536LE003 594 SPO01.01 (1967)12003000090857le003-E0.00-l- 00000.i1206446418-12-02Euthecosomata899007UNISALENTOle00301-01-97ma -engne 01