CATALOGUE OF THE MAZATLAX MOLirSCA. 



CLASS BRYOZOA. 



FAMILY MEMBRANIPORID^. 



1 Membranipora denticulata, 



2 Membranipora gbthica ; 



3 Lepralia atrofusca, 



4 Lepralia trispinosa, 



5 Lepralia inazatlanica, 



6 Lepralia rostrata, 



7 Lepralia marginipora, 



8 Lepralia bippocrepis, 



9 Lepralia htimilis, 



10 Lepralia adpressa. 



FAMILY CELLEPORID^. 



11 Cellepora papillseformis, 



12 Cellepora cyclostoma. 



FAMILY DISCOPORAD^. 



13 Defrancia intricata. 



CLASS TUNICATA. 



Omnia adbuc ignota. 



CLASS PALLIOBRANCHIATA. 



FAMILY DISCINIDiE. 

 14 Discina cumingii. 



CLASS LAMELLIBRANCHIATA. 



FAMILY PHOLADID^. 



15 Pboladidea melanura, 



16 Pboladidea ? curta ; 



17 Parapbolas calva, 



18 Parapbolas acuminata ; 



19 Martesia intercalata ; 

 20 . 



FAMILY GASTROCII^NID^. 



21 Gastrocbaena truncata, 



22 Gastrocbaena ovata. 



FAMILY SAXICAVID^. 



23 Saxicava arctica. 



FAMILY PETRICOLID^. 



24 Petricola robusta, 



25 Petricola ventricosa, 



26 Petricola ; 



27 Rupellaria lingua-felis, 



28 Rupellaria exarata, 



29 Rupellaria . 



FAMILY CORBULIDiE. 



30 Corbula bicarinata, 



31 Corbula biradiata, 



32 Corbula pustulosa, 



33 Corbula ? ovulata, 



34 Corbula ; 



35 Spbaenia fragilis. 



FAMILY PANDORID^. 



36 Lyonsia picta. 



FAMILY SOLECURTID^.. 



37 Solecurtus affinis, 



38 Solecurtus politus, 



39 ? Solecurtus . 



FAMILY TELLINID^. 



40 Semele flavescens, 



41 Semele ? venusta ; 



42 Cumingia lamellosa, 



43 Cumingia trigonularis, 



44 Cumingia californica, 



