New Species. 



Mactra [PelecypodaJ. 



— hiimtleyt. Cossmami & Peyrot. 



7. ■!!)'.). 



— nwlall. Cossmann & Peyrot. 



7399. 



— nuclei for mis var. diivergieri n. var. 



Cossmann & Peyrot. 7399. 

 Malletia [Pelecypoda]. 



— pencanolJes. Wilckens. 8034. 

 Maminka [Pelecypoda]. 



— italica. Cioitaiii. 7512. 

 Mangilia [Oastropoda], 



— clarae. Maury. 7720. 



— isabellae. Maury. 7720. 



— nemorensh. Maury. 7720. 



— ramondi. Maury. 7720. 



— strahoii'is. Maury. 7720. 



— tarn. Maury. 7720. 



— websterl. Maury. 7720. 



Manupectes [Pelecypoda]. 



— carhiocoatatm. Schaffer. 7872. 



— ereatcnsis Tout. var. laevis u. var. 



Schaffer. 7872. 



— — Font. var. latesuleata u. var. 



Schaffer. 7872. 

 Manzanella n. ^en. [Pelecypoda]. 

 Girty. 7501. 



— elUptica. (iirty. 7501. 

 Margarita [Gastropoda]. 



— geraensis. Dietz. 7420. 



— jolinsoni. .\ruold. 7277. 

 Maegauitella [Gastropoda]. 



— eo7ioi'lea. Bohin. 7313. 



— ganzl. Bohm. 7313. 



— lenaiforinis. Bohm. 7313. 



Margineij.a [Gastropoda]. 



— cliipolaiia. Maury. 7720. 



— cornoUiana. Maury. 7720. 



— dent icidato idea. Maury. 7720. 



— staffi.. Bose. 7315. 



— — var. aZiJo)' u. var. Bose. 7315. 

 Martesia [Pelecypoda]. 



— helleradei. Cossmann & Pevrot. 



7399. 

 Matheronia [Pelecypoda]. 



— ausonlaola. Parona. 7776. 

 Mathildia [Gastropoda]. 



— bonneti. Cossniaun. 7398. 

 Megai'IIYllites [Cephalopoda]. 



— labiatus. Salopek. 7863. 

 Meretrix [Pelecypoda]. 



— benointi. (Jossmann & Pevrot. 



7399. 



— gabbi. Arnold. 7277. 



— i)iterealarin. Cossmann & Peyrot. 



7399. 



153 



2231 



ilii.A [Pelecypoda]. 



— carniea. Gortani. 7512. 



MiTRA [Gastropoda]. 



— barnardensis. Maury. 7720. 



— berkeyi. Maury. 7720. 



— rnyttonis. Maury. 7720. 



— aeoptdi. Mauryl 7720. 



— ucdtoyiensis. Aldrich. 7256. 

 MoDioLA [Pelecypoda]. 



— k'mklis. Wollemann. 8055. 

 MoDTOLODON [Pclecypoda]. 



— quadiatus. Elind. 7573. 



— subcircidaris. Hind. 7573. 

 MoDioLOPSts [Pelecypoda]. 



— seotiea. Hind. 7573. 



— subqnadratm. Hind. 7573. 

 MuLiNiA [Pelecypoda]. 



— densata mino)- n. var. Arnohl. 



7277. 

 MuRCiiisoNiA [Gastropoda]. 



— pseudo-attenuata. Gortani. 7512. 



Murex [Gastropoda]. 



— aguilari. Bose. 7315. 



— vaiighani. Maury. 7720. 



— veatehi. Maury. 7720. 



— virginiae. Maury. 7720. 



Myalina [Pelecypoda]. 



— prisca. Hind. 7573. 

 Mysidioptera [Pelecypoda]. 



— aequieostata. Wilckens. 8035. 



— erecta. Wilckens. 8035. 



— h. ph'dippi. Wilckens. 8035. 



;Mytilops [Pelecypoda]. 



— subovalis. Hind. 7573. 



Mytilus [Pelecypoda]. 



— cdtecarinatus. Wilckens. 8035. 



— coal'mgensis. Arnold. 7277. 



— galloprovineiaUs Lam. var. fuseoides 



n. var. Schaffer. 7872. 



— galloprovineiaUs Lam. var. miolier- 



culea n. var. Schaffer. 7872. 



— praeacutiforinis. Wilckens. 8035. 



— {?) sphinx. Wills. 8042. 

 Nacella [Gastropoda]. 



— ovata. Wilckens. 8034. 

 Naiadites [Pelecypoda]. 



— madagaseariensis. Newton. Tlolx. 



Nassa [Gastropoda]. 



— berthae. Maury. 7720. 



— californiana coaUngcnsis n. var. 



Arnold. 7277. 



— dalU. Maury. 7720. 



— harrisi. Maury. 7720. 



— veatehi. Maury. 7720. 



