FISHES OF TEXAS AJSlD THE RIO GRANDE BASIN. 
125 
83. Mactra braziliana Lam. Corpus Christi (Dr. Gurley). 
84. G-nathodon cuneata Con. Corpus Christi and Galveston. Abundant. The Givens Oyster Com- 
pany, at Corpus Christi, were canning this species and putting it on the market labeled 
“ Little Neck Clams.” 
85. Gnathodon rostrata Petit. Galveston (Dr. Gurley). 
86. Labiosa canaliculata Say. Single valves are abundant at Corpus Christi and Galveston. 
87. Semele reticulata Gmel. Galveston (Dr. Gurley). 
88. Abra sequalis Say. Galveston. Not common. 
89. Cumingia tellinoides Con. Corpus Christi. Not common. 
90. Tellina alternata Say. Galveston and Corpus Christi. Abundant. 
91. Tellina polita Say. Corpus Christi (Dr. Gurley). 
92. Macoma constricta Brug. Galveston and Corpus Christi. Not common. 
93. Macoma brevifrons Say. Galveston (Dr. Gurley). 
94. Donax tumida Retz. Galveston and Corpus Christi. Abundant. 
95. Donax roemeri Pfr. Galveston and Corpus Christi. Not common. 
96. Petricola pholadiformis Lam. Single valves were found at Galveston and Corpus Christi. 
97. Venus cancellata L. Dead shells are very abundant on the beach at Corpus Christi. A few 
beach-worn shells found at Galveston. 
98. Venus mercenaria L. Corpus Christi (Dr. Gurley). 
99. Venus mercenaria L. var. mortoni Con. Galveston ana Corpus Christi. Common. 
100. Venus rostrata Sowb. Corpus Christi. Common. 
101. Cytherea texasiana Dali. Galveston. Single valves are not uncommon on Galveston beach. 
102. Cytherea gigantea Gmel. Galveston and Corpus Christi. Common. 
103. Dosinia discus Reeve. Galveston and Corpus Christi. Common. 
104. Pisidium compressum Prime. Comal Creek, New Braunfels. Common. 
105. Sphaerium singleyi Pilsbry. White Oak Bayou, Houston; Guadalupe River, New Braunfels. 
Not common. * 
106. Cardium musicatum L. Galveston and Corpus Christi. Single valves are common. 
107. Cardium magnum Born. Galveston and Corpus Christi. Abundant. 
108. Laevicardium mortoni Con. Abundant, living in Corpus Christi Bay. Single valves only 
found at Galveston. 
109. Lucina crenulata Con. Single valves abundant in the beach drift at Corpus Christi. 
110. Unio undulatus Barnes. San Antonio River at the waterworks station, San Antonio. Two 
odd valves only were found. 
111. Unio asper Lea. Long Lake, Anderson County. Abundant. 
112. Unio texasensis Lea. Long Lake, Anderson County. Common. 
113. Anodonta stewartiana Lea. Long Lake, Anderson County. A number of fine examples of 
this species were taken. 
114. Leda concentrica Say. Single valves common at Galveston and Corpus Christi. 
115. Area ponderosa Say. Beach- worn valves are common at Galveston and Corpus Christi. 
116. Area transversa Say. Single valves common at Galveston and Corpus Christi. 
117. Area incongrua Say. Galveston and Corpus Christi. Abundant. 
118. Area pexata Say. A few valves found at Galveston. 
119- Area americana Gray. Corpus Christi (Dr. Gurley). 
120. Mytilus cubitus Say. Corpus Christi. Common on oysters. 
121. Mytilus hamatus Say. Galveston and Corpus Christi. Very abundant on oyster reefs. 
122. Modiola plicatula semicostata Conrad. A fine large example was taken in Galveston Bay 
(near the bayou connecting Swan Lake with the bay) while seining in shallow water there. 
123. Pinna muricata L. A few valves found at Corpus Christi. 
124. Plicatula ramosa Lam. Galveston (Dr. Gurley). 
125. Pecten irradians Lam. Beach-worn valves are common at Galveston and Corpus Christi. 
126. Pecten irradians dislocatus Say. Same distribution and abundance as P. irradians. I found 
it living in Corpus Christi Bay. 
127. Anomia simplex Orb igny. Single valves are washed up on the beach at Galveston. A number 
were found living at Corpus Christi. 
128. Ostrea virginica Gmel. The most common mollusk on the Texas coast. For a discussion of the 
commercial phase of the oyster industry on the Texas coast, see Mr. C. H. Stevenson’s paper 
in the report of the U. S. Commissioner of Fish and Fisheries for 1889-91. 
