TURBIDÆ. Marmarostoma undulata 14 BIVALVES. Unio truncatus 10 Anodon areolatus 18 Tellina latirostra 20 Margarita crocata 55 Lingula aratina 24 ---- hians 25 Byssoarca zebra 113 * * * * * * INDEX TO THE BIRDS. (SECOND SERIES.) ---- _In the order of Publication._ Psittacus vernalis 1 Polyborus Braziliensis 2 Setophaga picta 3 Parra Africana 6 Cuculus nigricans 7 Lorius Isidorii 8 Thriothorus Mexicanus 11 Lorius Garrulus 12 Coccyzus Levaillantii 13 Paleornis Pondicerianus 16 Hirundo fasciata 17 Nanodes venustus 21 Icterus Cayanensis 22 Drymophyla longipes 23 Platycercus scapularis 26 Drymophila fasciata 27 Aglaïa gyrola 28 ---- flava 31 Psaris Jardinii 35 Petroïca multicolor 36 Ploceus Textor 37 Psaris cristatus 41 Chætura macroptera 42 Petroïca bicolor 43 Fluvicola cursoria 46 Macropteryx longipennis 47 Sylvia Regulus 51 Phoenicornis flammeus 52 Nyctiornis amictus 56 Culicivora atricapilla 57 Gryllivora Saularis 61 Ptiliogonys cinereus 62 Todus viridis 66 Malaconotus Barbarus 71 Donacobius vociferans 72 Malaconotus atro-coccineus 76 Crateropus Reinwardii 80 Prionites Mexicanus 81 Trogon Mexicanus 82 Garrulus sordidus 86 Trichoglossus Swainsoni 92 Prinia familiaris 97 Ptiliogonys cinereus 102 Trogon Mexicanus. mas 107 Leptolophus auricomis 112 Leptonyx macropus 117 Apalis thoracica 119 Malacocircus striatus 127 * * * * * * _In Systematic Order._ FALCONIDÆ. Polyborus Braziliensis 1