52 



Forty-fourth Report on the State Museum, 



LIST OF SECTIONS OF THE SHELLS OF GENERA AND 

 SPECIES OF BRACHIOPODA PEEPARED FOR THE 

 STUDY OF THE MICROSCOPIC STRUCTURE. 



The preparation of these sections was begun many years since, 

 and some examples were illustrated in the report of 1883. 



I'he cutting machinery devised and constructed under my 

 direction many years since, has not been in my control for several 

 years past, and therefore comparatively little progress has been 

 made in this work. The list now numbers over 500 sections, 

 and we have material on hand for making a considerable increase 

 in the number here stated. Instead of making this study of micro- 

 scopic structure a part of the current volume, I have concluded 

 to defer the work till some future time when it may be taken 

 up as a special study. 



LIST OF MICROSCOPIC SECTIONS OF BRACHIOPODA. 



December 1, 1890. 



Number of 

 sections. 



Lingula punctata 2 



densa 2 



Lingulepis pinniformis 2 



Orbiculoidea Conradi 1 



media 5 



Schizotreta conica 8 



Crania Hamiltonise 1 



crenistria 1 



Orthis tricenaria 3 



Hippoiyte 1 



pectinella 2 



flabellula 6 



plicatella 5 



Ella 1 



subquadrata 4 



deflecta 1 



loricula 1 



strophomenoides 1 



sinuata 4 



occidentalis 18 



insculpta 6 



bif orata 4 



biloba 4 



Clytie 9 



.testudinaria 13 



Meeki 4 



Number of 

 sections. 



Orthis elegantula 11 



emacerata 3 



subsequata 4 



perveta 5 



borealis 2 



subcarinata 3 



lenticularis 3 



superstes 1 



Michelini 13 



Vanuxemi 17 



circulus 2 



Penelope 5 



hybrida 12 



Livia 4 



Missouriensis 1 



dubia 1 



TuUiensis 7 



impressa 2 



lowensis 7 



multistriata 3 



Billingsella Laurentina 4 



Scenidium pyramidale 4 



Clitambonites Verneuili 1 



Triplecia Ortoni 1 



Strophomena sulcata 2 



tenuis 2 



