266 REFERENCE TO PLATES. 



45. Circulation of Paludina vivipara. gc, cerebral ganglion; gp, 



pedal ganglion; ot, ear; op, operculum; r, kidney; ut, uterus; ov, 

 ovary; other references as above. Leydig, Zeit. Wiss. Zool., II. 37 



46. Nervous system of Chiton. After Garner 34 



Plate 7. 



71. Egg capsules of Fusus antiquus. Keferstein, f. 92, p. 997 47 



72, 73. Egg capsules and embryo of Murex pomum, Gmel. Specimen. 47 

 74, 75. Egg capsules of Purpura lapillus. Keferstein, f. 95, p. 999 . 47 



76, Capsules of Littorina littorea, with developed young. Kefer- 



stein, f. 91, p. 995 47 



77, 81. Capsules of Fasciolaria tuli pa? Fort Macon, N.C., Specimen.. 47 



78, 79. Capsules of an unknown Muricoid mollusk. Mus. Acad. 



Philada 47 



80. Capsules of Nassa reticulata, upon a portion of Zostera leaf. 



Johnston's Introd. Conch., f. 75 a, p. 359 47 



Plate 8. 



82-89. Development of Buccinum undatum, L. ot, otolitbs; T, ten- 

 tacles; <7, ganglia; br, branchiae; v, stomach; r, heart (kid- 

 ney of K. and D. ); i, intestine; op, operculum; P, foot; 

 s, salivary gland; c, embryonic heart (contractile vesicle of 

 Koren and Dan.). Koren and Danielssen, Faun. Lit. 



Norv., 1856 47 



90-98. Development of Purpura lapillus, L. a, oesophagus; ch, 

 shell; P, foot; other explanations as above. Koren and 



Danielssen, Bidrag. Pectin., t. 3 and 4, 1851 47 



99, 100. Macgillivraya pelagica. Macdonald, Philos. Trans., t. 16, 



1855 47 



101, 102. Sinusigera cancellata, Orb. ( Cheletropis, Huxleyi). H. and 



A.Adams. Genera, III, t. 137 47 



103-105. Echinospira diaphana, Kr. Within the temporary shell in 

 f. 104, is seen the permanent shell (Marsenia). Krohn, 

 Archiv fur Naturg., xi, 1853. 



Plate 9. 



106. Murex scolopax, Dillw. Kiener, Coq. Viv., t. 4, f. 1 77 



107. Murex tribulus, Linn. Reeve, Conch. Icon., sp. 82 77 



108. Murex occa, Sowb. (= scolopax, Dillw.). Sowb., Conch. Illust., 



f. 45 77 



109. Murex nigropinosus, Reeve (= tribulus, L.). Reeve, Conch. 



Icon., sp. 79. 77 



110. Murex ternispina, Lam. Sowb., 1. c., f. 110. 78 



Plate 10. 



111. M. Troscheli, Lischke (= ternispina, Lam.) Lischke, Moll. 



Japan, t. 1, f. 2 78 



112. M. funiculatus, Reeve (=- recurvirostris, Brod. ), Reeve, 1. c., 



f. 74 80 



113. M. tenuispina, Lam. Reeve, f. 85 78 



114. M. aduncospinosus, Beck (= ternispina, Lam.). Sowb., 1. c., 



f. 68 78 



115. M. formosus, Sowb. (=rarispina, Lam.). Sowb., f. 112 79 



