PLATE XXII. 



PAOE 



Fig. 115. Martesia clausa. Magnified. 145 



Fig. 116. Titrnus plenus. Natural size. 146 



Fig. 117. Solen parallelus. Natural size. 146 



Fig. 118. Pharella alta. Magnified. 147 



Fig. 119. Panop^ea concentrica. Natural size. 148 



Fig. 120. ? Corbtjla primorsa. Magnified. 148 



Fig. 121. C. Traskii. Magnified. 149 



Fig. 122. C. cultriformis. Magnified. 149 



Fig. 123. Pholadomya Brewerii. Natural size. 152 



Fig. 125. Nk.era dolabr.eformis. Magnified. 153 



Fig. 126. Anatina lata. Natural size. 151 



Fig. 127. Mactra Ashburnerii. Natural size. 153 



Fig. 128. Li'traria truncata. Natural size. 154 



Fig. 129. Asaphis tjndulata. Magnified. 154 



Fig. 130. ? Gari texta. Natural size. 155 



Fig. 131. Tellina longa. Natural size. 155 



Fig. 132. T. RemondiL Natural size. 156 



Fig. 133, u. T. Hoffmanntana. Natural size. 156 



Fig. 134. T. moxilifera. Natural size. 157 



(/. Magnified view of posterior end. 



Fig. 135. T. ooides. Natural size Martinez. 157 



135, a. Cast of same species from Pence's ranch. 



