CONCHOLOGY. 



PLATE XXVIII. 



MALLEUS MACULATUS 

 SPOTTED HAMMER SHELL, OR HOUND'S TONGUE. 



* Bivalve. 



generic character. 



Shell subquivalve, rough, deformed, generally lengthened and 

 Ibbed or hammer-shaped : beaks small and divergent. Hinge with- 

 out teeth, a lengthened conic hollow situated under the beaks and 

 traversing obliquely the facet of the ligament. A lateral slope or 

 groove at the side of the ligament for the passage of the byssus or 

 beard with which the animal is furnished. 



SPECIFIC CHARACTER. 



Shell curved, with a single somewhat straight abbreviated lobe 

 at the base : reddish yellow, clouded, spotted and dotted with fuscous. 



U 



