MURICIDAE 211 



Muricopsis ostrearum Conrad Mauve-mouth Drill 



Figure 47g 



West coast of Florida to the Florida Keys. 



I inch in length, extraordinarily like Urosalpinx perrugata, but more 

 elongate, with a longer siphonal canal which is bent slightly back, and with 

 a light-mauve aperture. Moderately common from low tide area to 35 

 fathoms. M. fioridmja Conrad is this species. 



Genus Fseudoneptunea Kobelt 1882 

 Pseudoneptunea miiltangiila Philippi False Drill 



Figure 47f 



North Carolina to both sides of Florida and the West Indies. 



I to I /4 inches in length, rather broad, with a short, fairly open siphonal 

 canal. Outer lip sharp, finely crenulated. At the base of the columella there 

 is a single, small fold. 8 to 9 short, rounded axial ribs on the periphery of the 

 whorl. Spiral cords weak. Color gray with red-brown specklings; some- 

 times solid yellow-orange. Moderately common. 



Subfmnly PURPURINAE 



Genus Driipa Roding 1798 



Subgenus Morula Schumacher 18 17 



Drupa nodulosa C. B. Adams Blackberry Drupe 



Plate 25V 



South half of Florida and the West Indies. 



'V2 to I inch in length, elongate, grossly studded with round, black beads. 

 Aperture purplish black. Outer lip thick, and with 4 to 5 relatively large, 

 white beads. A common shallow-water species found under rocks. 



Genus Acanthina Fischer von Waldheim 1807 

 Subgenus Acanthinucella Cooke 191 8 



Acanthina spirata Blainville Spotted Thorn Drupe 



Plate 24-0 

 Puget Sound to San Diego, California. 



I to I /4 inches in length, rather low-spired, solid, smoothish, except for 

 numerous, poorly developed, spiral threads. Spine on lower, outer lip is 

 strong, behind which on the base of the outside of the body whorl is a weak, 

 spiral groove. Whorls slightly shouldered. Color bluish gray with numerous 

 rows of small, red-brown dots. Aperture within is bluish white. A round- 

 shouldered, smaller form (punctulata Sby. or lapilloides Conrad) is found 



