PLATE XXII. 



PAGE 



Fig. 115. MARTESIA CLAUSA. Magnified. 145 



Fig. 116. TTTRNUS PLENTJS. Natural size. 146 



Fig. 117. SOLEN PARALLELTTS. Natural size. 146 



Fig. 118. PHARELLA ALTA. Magnified. 147 



Fig. 119. PANOP^EA CONCENTRICA. Natural size. 148 



Fig. 120. ? CORBULA PRIMORSA. Magnified. 148 



Fig. 121. C. TRASKII. Magnified. 149 



Fig. 122. C. CULTRIFORMIS. Magnified. 149 



Fig. 123. PHOLADOMYA BREWERII. Natural size. 152 



Fig. 125. NE^ERA DOLABR^FORMIS. Magnified. 153 



Fig. 126. ANATINA LATA. Natural size. 151 



Fig. 127. MACTRA ASHBURNERIT. Natural size. 153 



Fig. 128. LUTRARIA TRUNCATA. Natural size. 154 



Fig. 129. ASAPHIS UNDULATA. Magnified. 154 



Fig. 130. ? GARI TEXTA. Natural size. 155 



Fig. 131. TELLINA LONGA. Natural size. 155 



Fig. 132. T. KEMONDII. Natural size. 156 



Fig. 133, a. T. HOFFMANNIANA. Natural si/.o. 156 



Fig. 134. T. MONILIFERA. Natural size. 157 

 a. Magnified view of posterior end. 



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

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



