EUGLANDINA. 185 



Species of Mexico and Central America. 



17. E. HUINGENSIS (Pilsbry). PL 23, figs. 25, 26, 27. 



The shell is obesely oblong, thin, fleshy-brown, glossy, with 

 short, conic spire and very obtuse summit. The first two 

 whorls are almost wholly smooth, and enlarge very rapidly, 

 the second whorl being disproportionately wide ; then short, 

 distinct plica appear below the suture, the rest of the surface 

 being smooth for the next half whorl, after which the foldlets 

 extend weakly and irregularly further down, as in the adult 

 stage. The last whorl descends very rapidly, and has sculp- 

 ture of rather strong, subregular folds denticulating the 

 suture, but rapidly weakening downwards into low wrinkles. 

 There is no spiral striation. Aperture subvertical, the outer 

 lip very weakly arching forward in the middle. Columella 

 deeply arcuate and abruptly truncate. Length 36, diam. 17. 

 length of aperture 22 mm. ; whorls S 1 /^. 



Mexico: Huingo, State of Michoacan (Rhoads). 



Glandina huingensis PILS., Proc. A. N. S. Phila. 1903, p. 

 770, pi. 47, f. 2, 2 a, 6. 



With some resemblance to E. indusiata, this species differs 

 by the absence of spiral sculpture. Though the suture is 

 sharply denticulate, the last whorl, except close to it, is nearly 

 smooth. The increase of the whorls is very irregular, the 

 second whorl being abnormally wide, the third much nar- 

 rower, and finally the last whorl descends rapidly, the last 

 suture being quite oblique to the preceding. I know of no 

 closely related species. The length was wrongly given in the 

 original description. Figures and description are from the 

 type. 



18. E. INDUSIATA (Pfr.). Vol. I, p. 41 ("indusiaca"). 



19. E. VANUXEMENSIS (Lea). Vol. I, p. 39 ("vanuxemii"). 



Includes A. coronata Pfr., vol. I, p. 37 ; var. guttata C. 

 et F., vol. I, p. 37. 



20. E. MICHOACANENSIS (Pilsbry). PI. 22, figs. 16, 17. 

 Shell obesely fusiform, rather thin, of a dull red color, 



