GARRETT: ON POLYNESIAN MITRID^. 53 



is not Swainson's species. Presuming their conclusions to 

 be correct I have adopted their specific name. They men- 

 tion four rows of spots on the body and two on the spire. 



It has been referred to Reeve's Deshayesii, which is 

 described and figured as simply noduled on the angle, smooth 

 beneath, and no ribs mentioned. 

 125. Turricula modicella, sp. nov. 



Shell small, fusiform, glossy, white, with the upper 

 portion of the whorls and base tinged with brown; spire 

 rather long, with concave outlines; base strongly contracted 

 and produced into a short, slightly twisted canal; whorls 

 embryonal two, smooth, normal whorls six, flatly convex, 

 somewhat roundly shouldered, last one slightly turgid; longi- 

 tudinally ribbed, ribs smooth, angular, about 13 on the body 

 whorl; interstices transversely impressly striated; aperture 

 narrow, less than half the length of the shell; outer lip with 

 a slight sinus above; columella with three plaits. 

 Length 7 mill. (Mus. Godeffroy). 

 CLj Hab. Pa^motu Islands. 



^ A rare and pretty species of which we found several 



examples under coral on the outer reefs. 

 126. Turricula nodosa Swainson. Reeve, Conch. Icon., pi. 

 XXV., fig. 196^', 1961:^. 



Excepting the Marquesas, this species was obtained at 

 all the South Sea groups, where they are found on the inner 

 margins of reefs. 



They vary, some in the size of the tubercles and in the 

 distinctness and number of incised lines. At some of the 

 Pa^motu Islands, where they are more abundant than else- 

 where, a small variety occurs which has a row of pale slate- 

 colored spots on the middle of the body whorl, the spots 

 confined between the ribs. Some have a slate-colored band 

 articulated with orange-yellow. 



