TN00214 SLAB-SIDED PEARLY MUSSEL LEXINGTONIA DOLABELLOIDES
Behavior: Dispersal is during the larval stage only by movement of the host species *2100*. Origin: The origin of this species is native *3895*. PHYSICAL DESCRIPTION: SHELL IS OF MEDIUM SIZE AND SUBTRIANGULAR IN OUTLINE, BEAKS ARE PROMINENT WITH THE UMBONAL AREA ARCHED FORWARD AND LOCATED NEAR THE ANTERIOR END, VALVES ARE MODERATELY INFLATED AND VERY SOLID, ANTERIOR END OF SHELL IS OBLIQUELY TRUNCATE ABOVE AND ROUNDED TO THE BASE, POSTERIOR SLOPE IS TRUNCATED, VENTRAL MAGIN OF THE SHELL IS CURVED AND DORSAL SLOPE IS STRONGLY CURVED, POSTERIOR RIDGE NARROWLY ROUNDED, BUT DISTINCT, ALTHOUGH NOT AS ELEVATED AS THE RADIAL SWELLING IN FRONT OF IT, SHELL SURFACE OFTEN IRREGULARLY AND CONCENTRICALLY SCULPTURED AS A RESULT OF PRONOUNCED GROWTH RINGS, PERIOSTRACUM IS TAWNY OR BROWNISH WITH A FEW BROKEN GREEN OR BROWN RAYS OR BLOTCHES IN SOME SPECIMENS, ESPECIALLY YOUNG INDIVIDUALS, BEAK SCULPTURE CONSISTS OF 6-8 FINE, RATHER CROWDED IRREGULAR AND WAVY BANDS, DISTINCT ANTERIORLY, BECOMING INDISTINCT IN THE MIDDLE, THERE ARE A FEW LOW INDISTINCT PUSTULES ON THE POSTERIOR RIDGE, BUT THEY SHOW NO RELATION TO THE ANTERIOR BARS, LEFT VALVE HAS TWO PSEUDOCARDINAL TEETH, THE UPPER TOOTH IS TRIANGULAR AND THE LOWER TOOTH BLADE-LIKE, SEPARATED FROM TWO SHORT, CURVED LATERAL TEETH BY A BROAD INTERDENTUM, RIGHT VALVE HAS A TRIANGULAR PSEUDOCARDINAL TOOTH OCCASIONALLY A VESTIGAL TOOTH BELOW IS PRESENT, BEAK CAVITIES ARE SHALLOW, MUSCLE SCARS ARE SMALL AND DEEP AND THE PALLIAL LINE IS WELL IMPRESSED ANTERIORLY, NACRE COLOR IS WHITE OR STRAW-COLORED *TN5587* REPRODUCTION: UNRIPE GLOCHIDEA RECORDED IN EARLY JULY, LITTLE ELSE IS KNOWN *TN5587*
| Life History |
References for Life History Codes
3895, 2100, TN5587
Comments on Life History Codes