A HISTORY OF DURHAM 



Lima subauriculata (Mont.) 

 Loscombi, Sow. 

 Turtonia minuta (Fab.) 

 Astarte sulcata (da Costa) 



compressa (Mont.) 

 Cyprina Islandlca (Linn.) 

 Lucina borealis (Linn.) 

 Thyasirajlexuosa (Mont.) 

 Mmtacuta lubstriata (Mont.) 



bldentata (Mont.) 

 Tellimya Jitrruginosa (Mont.) 

 Kellia suborbicularis (Mont.) 

 Lasifa rubra (Mont.) 

 Syndosmya prismatica (Mont.) 



nltlda (Mull.) 



alba (Wood) 



? tennis (Mont.) 

 Scnbicularia plana (da Costa) 

 Tellina crassa (Gmelin) 



tenuis, da Costa 



Rac.) 



Tellina fabula, Gron. 

 Donax vittattis (da Costa) 

 Mactra stultorum, Linn. 

 Spisula soRda (Linn.) 



elliptica (Brown) 



subtruncata (da Costa) 

 Lucinopsis undata (Penn.) 

 Dosinia exoleta (Linn.) 



lufina (Linn.) 

 Venus fasciata (da Costa) 



casino, Linn. 



ovata, Penn. 



gallina, Linn. 

 Tapes virgineus (Linn.) 



pullastra (Mont.) 

 Cardium echinatum, Linn. 



fasciatum, Mont. 



nodosum, Turton 



edule, Linn. 



Lcfvlcardlum norvegicum (Speng.) 

 Psammobia tellinella, Lamk. 



Psammobiaferroensis (Chemn.) 



depressa, Penn. 

 Mya arenaria, Linn. 



truncata, Linn. 

 Corbula gibba (Olivi) 

 Cultellus pellucidus (Penn.) 

 Ensis ensis (Linn .) 



siliqua (Linn.) 

 Panopea norvegica (Speng.) 

 Saxicava rugosa (Linn.) 



arctica (Linn.) 

 Borneo Candida (Linn.) 

 Zirfiea crispata, Linn. 

 Xylophaga dorsalis (Turton) 

 Lyonsia norvegica (Chemn.) 

 Cochhdesma pr<ttenue (Pult.) 

 Thracia fragifrs, Penn. 



var. villosiuscula, Macg. 



cmvexa (W. Wood) 



distorta (Mont.) 

 Cusp'idaria cuspidata (Olivi) 



SCAPHOPODA. 



Dentalium entalis, Linn. 



GASTROPODA (Whelks, 'winkles, 



I. PROSOBRANCHIA 



Patella depressa, Penn. 



vulgata, Linn. 

 Helcion pellucidus (Linn.) 



var. latils, Penn. 

 Acmcea testudinalis (Mall.) 



- vlrglnea (Mall.) 

 Puncturella noachina (Linn.) 

 Emarginula Jissura (Linn.) 

 Eumargarita helicina (Fab.) 

 Gibbula magus (Linn.) 



tumida (Mont.) 



cineraria (Linn.) 

 Calliostoma montagui, W. Wood. 



miliare (Broc.) 



zizyphinus (Linn.) 



occidental*, Migh. 

 Lacuna divaricata (Fab.) 



parva (da Costa) 



pallidula (da Costa) 

 Littorina nerltoldes (Linn.) 



rudls (Maton) 



obtusata (Linn.) 



- ftttorea (Linn.) 

 Rissoa inconspicua, Alder 



parva (da Costa) 

 Alvanla reticulata (Mont.) 



punctura (Mont.) 



M anzonia costata (]. Adams) 

 Onoba striata (]. Adams) 

 Hyala vitrea (Mont.) 

 Cingula semistriata (Mont.) 



Paludestrina stagnaKs (Baster.) 

 Jeffreysia diaphana (Alder) 

 Skenea planorbis (Fab.) 

 Capulus hungaricus (Linn.) 

 Trivia eunptfa (Mont.) 

 Natica pallida, Brod. and Sow. 



catena (da Costa) 



alderi, Forbes 



montagui, Forbes 

 Amauropsls islandicus (Gmelin) 

 Lamellaria perspicua (Linn.) 

 Velutina hevlgata (Penn.) 

 Velutelta flexllls (Mont.) 

 Scala turtonis (Turton) 



trevelyana (Leach) 

 Odostomia conspicua, Alder 



uni Jen fata, Forbes and Hanley 



turrita, Hani. 

 Brachystomia ambigua (Maton and 



Rack.) 



Ondina divisa (]. Adams) 

 PyrguKna indistincta (Mont.) 



Interstlncta (Mont.) 

 SpiraRnella spiralis (Mont.) 

 Pyrgostelis interrupta (Totten) 

 Eulimella scllla (Scac.) 



commutata, Monterosato 

 Eulima intermedia, Cant. 



incurva (Ren.) 



gracllls, Forbes 



bilineata (Alder) 



88 



Stilifer turtoni (Turt.) 



Ceecum glabrum (Mont.) 



Turritella communis, Lamk. 



Trichotnpsis borealis, Brod. and 

 Sow. 



Aporrhals pes-pelecani (Linn.) 



Buccinum undatum, Linn, 

 var. KttoraRs, King 

 var. striata, Penn. 

 var. pelagica, King 

 var. magna, King 



Liomesus dalei (]. Sow.) 



Neptunea antlqua (Linn.) 



Volutopsls norvegicus (Chem.) 



Beringius turtoni (Bean) 



Tritonofusus gracllls (da Costa) 



pnplnquus (Alder) 

 Buccinofusus berniciensis (King) 

 Trophon barvicensls, Johnst. 



truncata, Strom 

 Purpura lapillus (Linn.) 

 Nassa incrassata (Strom) 

 Beta turricula (Mont.) 



trevelyana (Turt.) 



rufa (Mont.) 

 Mangilia costata (Don.) 



brachystoma (Phil.) 

 Teretia anceps (Eichw.) 

 Clathurella leufroyi (Mich.) 



Safaris (Mont.) 



