266 



MONILEA-MINOLIA. 



minute white and brown articulation ; aperture subquadrate ; um- 

 bilicus large, deep. (Soiverby.) 



San Nicolas, Zubu, Philippines. (Cuming.) 



Margarita solariiformis SOWB., Malacological and Conchological 

 Magazine, pt. i, 1838, p. 26 ; Conchological Illustr., Margarita, f. 8. 

 G. B. SOWERBY, JR., in Keeve's Conch. Icon., Monogr. Margarita, 

 f. 27. T. solariiformis PHILIPPI, Conchyl. Cab., p. 244, t. 37, f. 1. 



Adult specimens of what I take to be the true solariiformis are 

 before me, and one is figured on pi. 67, fig. 73. The shell is 

 elevated ; bluntly conic, whorls 6, the earlier two rounded, the rest 

 with a strong angle on the upper surface, the last with another at 

 the periphery. There are slight growth-lines but no spiral strife 

 above the periphery ; the base has a beaded carina bounding the 

 very deep umbilicus, and outside the carina about 7 smooth con- 

 centric lirse becoming smaller toward the periphery. The umbilicus 

 is clathrate inside, funnel-shaped and has about 6 spiral line crossed 

 by numerous radiating riblets. The aperture is rounded-rectangular, 

 pearly and pinkish inside. Alt. 9, diam. 9 mill. The color is pur- 

 plish-brown, with numerous narrow, irregular or zigzag radiating 

 light streaks. The upper surface of the earlier whorls is seen 

 to be slightly fluted under a lens, on the flat portion above the superior 

 carina. The iridescence of the pearl often shows through the outer 

 coat on the spire. There are often a few spiral raised threads in the 

 concave portion between the two carinse on the body-whorl. 



This is one of those forms which might be equally well placed in 

 true Solariella. 



M. EUDELI Deshayes. PL 66, figs. 2, 3. 



Shell small, discoidal-conical, subturbinate, apex rather obtuse, 

 spire short ; whorls 5, slowly increasing, transversely very minutely 

 striate-granulose ; last whorl large, depressed beneath, the base um- 

 bilicate. Aperture semilunar, little oblique ; shell whitish-rufous, 

 elegantly marbled with chestnut spots. Alt. 3, diam. 5 mill. (Desh.~) 



Island of Reunion 



Trochus (Margarita) eudeli DESK., Moll, de L'ile de la Reunion, 

 p. 75, t. 8, f. 9, 10, 1863. 



M. CASTA G. & H. Nevill. PI. 60, figs. 21, 22. 



Shell conoidal, glabrous ; white, ornamented with brown., some- 

 times in distant broad flames, sometimes in minute close reticula- 

 tions ; base white, on the outer half only streaked or marbled with 



