24 



541 Perna sulcata ? 



542 . 



543 



644 



MALLEUS. 



545 IMallcus albus 



640 vulgaris 



54" inormalis 



548 anatinus 



549 vulsellatus 



550 decurtatus 



AllCULA. 



651 Aviciila macroptcra 



552 senii-sagitta 



553 lietoroptera 



554 ■ falrata 



555 crocea 



556 ■ Atlantica? 



557 squamulosa, several varieties 



558 papilionacea, several varieties 



559 costellata? 



559« 



MELE.tGlil.NA. 



560 Mclcagrina margaritifera 

 561 albina 



LIMA. 



562 Lima inflata 



56.J sfpiainosa, several specimens 



564 o-lacialis 



565 fragilis 



566 Linguatula 



