270 



Lepasterias tenera compta . . 86 



Lepidonotus squamatus 117 



Lepidonotus sublaevis 117 



Lepralia americana 105 



Lepralia pallasiana 104 



Leptogorgia virgulata 74 



Leptoplana variabilis Ill 



Leptosynapta inhaerens .... 96 



Libinia dubia 227 



Libinia emarginata 227 



Limnoria lignorum 215 



Limulus polyphemus 245 



LITTLE NECK 154 



Littorina groenlandica 180 



Littorina irrorata 180 



Littorina litorea 179 



Littorina obtusata 180 



Littorina paliata 180 



Littorina rudis 180 



Littorina saxitila 180 



Livoneca ovalis 214 



LOBSTER 222 



Loligo pealei 196 



Lucina dcntata 153 



Lumbrinereis tenuis 124 



Lyonsia hyalina 151 



M 



Macoma balthica 157 



Macoma calcarea 157 



Macoma tenta 157 



Mactra lateralis 161 



Mactra solidissima 160 



Malacobdella grossa 115 



Mangelia cerina 194 



Mangelia plicosa 195 



Mangelia stellata 29 



MANTIS SHRIMP 216 



Marginella guttata 193 



MARSH CRAB 240 



MARSH FIDDLER CRAB 242 



Martensia ovum 78 



MASON WORM 129 



Meckelia ingens ■ • • 114 



Meganyctipbanes norvegica . 209 



Melampus bidentatus 195 



Melampus lineatus 195 



Mellita pentapora 91 



Mellita quinquesperforata . . 91 



Mellita testudinata 91 



Membranipora lacroxii 104 



Membranipora monostachys 102 



Membranipora tehueleha . . . 103 



Membranipora tenuis 103 



Membranipora tuberculata . . 103 



Mesodesma arctatum 161 



Metridium dianthus 70 



Metridium marginatum .... 70 



Metridium senile 70 



Microciona prolifera 36 



Micrura leidyi 114 



Mitrella lunata 186 



Menemiopsis leidyi 77 



Modiolus demissus 150 



Modiolus modiolus 150 



Modiolus plicatula 150 



Molgula arenata 253 



Molgula manhattensis 252 



MOON SNAIL 173, 174 



MOON JELLY 65 



MUD CRAB 231 



MUD SNAIL 186 



MUD LOBSTER 223 



Mulinia lateralis 161 



MUSSEL 147 



MUSSEL CRAB 239 



Mya arenaria 162 



Mysis americana 208 



Mytilus clava 148 



Mytilus edulis 147 



Mytilus hamatus 148 



Mytilus recurvus 148 



N 



NANNY NOSE 162 



Nassa obsoleta 186 



Nassa trivittata 188 



Nassa vibex 188 



Nassarius obsoleta 186 



Nassarius trivittata 188 



Natica clausa 175 



Natica duplieata 173 



Natica pusila 174 



Nemopsis bachei 54 



Neopanope texana sayi 230 



Nepthys bucera 120 



Neptbys incisa 120 



Nepthys ingens 120 



