68 



J^EW YORK STATE MUSEUM 



Echinocaris punctata, 61''. 

 Ectenodesma sp. nov., 62'. 

 Elymella levata, 63^ 

 Encrinal limestone, 48^ 

 Euomphalus laxus, 62^ 



planodiscus, 44°. 

 Eurypterus remipes, 39^ 



Gastropods, 62'. 

 Genesee shale, So^-Sil 

 Glossites ?, 63". 



depressus, 63^ 

 Glyptodesma erectum, 62'. 

 Gomphoceras conradi, 44*. 



fischeri, 44^ 



oviforme, 44°. 



solidum, 44". 

 Goniophora sj^., 62'. 



chemungensis, 62°. 



rugosa, 62^ 

 Grammysia sp., 62^ 



arcuata, 62^ 



bisulcata, 62^ 



cf. constricta, 62'. 



lirata, 62°. 



magna, 62'. 

 Gyroceras trivolve, 42^ 



Hamilton group, 451 

 Hartnagel, cited, 27'^. 

 Hederella, 64°. ' 



Helderbergian limestone, 39'-4o\ 

 Hipparionyx proximus, 41*. 

 Holopea sp. nov. ?, 62". 



antiqua, 39*. 

 Homalonotus dekayi, 48', 6I^ 

 Hypothyris cuboides, 50', 64'. 



Ithaca fauna of central New York, 



by J. M. Clarke, 53-65. 

 Ithaca flags and sandstone, 52^ 



Lamellibranchs, 62^-63''. 

 Leda brevirostris, 6:f. 

 Lcperditia alta, 38°, 39'. 



scalaris, 36°, 2i7^. 

 Lepidodendron, 65'. 

 Leptaena rhomboidalis, 40', 42', 6:^^. 



ventricosa, 41*. 



Leptocoelia, 40'. 

 Leptodesma sp., 62*. 



naviforme, 62*. 



protextum, 62^. 



rogersi, 62*. 



spinigerum, 62'. 

 Leptostrophia sp., 63'. 



becki, 4o^ 



mucronata, 63'. 



nervosa, 62\ 



perplana, 63^ 

 Lingula sp., 63'. 



punctata, 63^ 

 Liopteria bigsbyi, 62^ 



dekayi, 62'. 



sayi, 62'. 

 Liorhynchus globuliformis, 64' 



limitaris, 44^ 44^ 45'. 



multicosta, 64'. 



multicostata, 45'. 



quadricostatus, 64^ 

 Loxonema, 62^ 



delphicola, 44^ 

 Ludlowville shale, 47^-48'. 

 Lunulicardium curtum, 44'. 

 Lyriopecten ?, 62^ 



sp. nov., 62''. 



tricostatus, 62^. 



Macrochilina sp. nov. ?, 62". 



onondagensis, 44*. 

 Manlius limestone, 38'-39''. 

 Manticoceras pattersoni, 5il 

 Marcellus shale, 42'-44^ 

 Meristella laevis, 40*. 



lata, 4I^ 

 Mesothyra ?, 44'. 

 Microdon bellistriatus, 6x- 

 Modiomorpha sp., 62'. 



concentrica, 62'. 



mytiloides, 62'. 



subalata, 62!. 

 var. chemungensis, 62^. 

 Moscow shale, 48^. 

 Murchisonia sp. nov., 62l 

 Mytilarca sp., 6^. 



cf. chemungensis, 6^^. 



cf. oyiformis, 6f. 



