270 DEPARTMENT OF THE yAYAL SERVICE 



8 GEORGE V, A. 1918 

 Bathymetric Whiteaves" 



Cythere whitei 



Cytherea convexa 



Cytherea sayana'. See O'therea convexa. 

 Cytherea sayii. See Cj-therea convexa. 



Cytheridea (?) elongata 



Cytheridea papillosa 



Cytheridea punctillata. 



Cytheridea sorbyana ; 



Cytherideis f oveolata 



Cytheropteron angulatum 



Cytheropteron arcuatum 



Cytheropteron nodosum 



Cytheropteron vespertillo 



Cy therura ( ? ) concentrica 



Cytherura (?) crista ta 



Cy therura (?) pumila 



Cytherura ( ?) sarsii 



Cytherura (?) undata 



Cyttarocyclis denticulata 



D 



Dacrydium vitreum 



Dajus mysidis 



Defrancia exarata. See Bela exarata. 



Defrancia lucernaria. See Discofascigera lucernaria. 



Defrancia nobilis. See Bela nobilis. 



Defrancia pingelii. See Bela pingelii. 



Defrancia scalaris. See Bela scalaris- 



Defrancia woodiana. See Bela woodiana. 



Dendrodoa aggregata var. pulchella 



Dendrodoa carnea . . 



Dendrodoa grossularia 



Dendronotus arborescens 



Dendronotus robustus 



Dendronotus reynoldsii. See Dendronotus arborescens. 

 Dendronotus velifer. See Dendronotus robustus. 

 Dentalium abyssorum. See Dentalium occidentale. 



Dentalium agile 



Dentalium dentale. See Dentalium occidentale. 

 Dentalium dentalis. See Dentalium occidentale. 



Dentalium entails 



Dentalium lobatum. See Siphonodentalium lobatum. 

 Dentalium vitreum. See Siphonodentalium lobatum. 



Dentalium occidentale 



Desmacella peachii var. groenlandica 



Desmacidon (Homaeodictya) palmata 



Desmophyllum nobile 



Dexamine bispinosa. See Halirages bispinosus. 

 Diadora noachina. See Puncturella noachina. 



Diaphana debilis 



Diaphana hiemalis 



Diaphana nitidula. See Retusa nitidula. 

 Diaphana pertenuis. See Retusa pertenuis. 



Dias longiremis 



Diastopora obelia 



Diastopora patina 



Diastylis goodsiri 



Diastylis luciferus 



Diastylis politus 



Diastylis quadrispinosus 



Diastylis rathkii 



Diastylopsis ( ?) resima 



Diastylis scorpioides. 



Diastylis sculptus 



Dicoryne flexuosa 



Dictyocha aculeata. See Distephanus aculeatus. 



Didemnopsis tenerum 



Diphasia fallax 



Diphasia mirabills 



Diphasia rosacea 



Diphyopsi.? campanulifera 



Discofascigera lucernaria 



Discopora hisi>ida. See Lichenopora hispida. 



243 120 



251 236 



