PI, 4 



A . Sonrel . 



Pi'intecB "by Tappan 8c "Bradford. 



l.ACANTHOCOTTUS VARIABILIS Girard. -^ 2 A YIR&INL\NUS Cxirard. 



3.C0TTUS GRACILIS Hectel - 4-6.B0LE0S0MA OLMSTEDI A6 







