THE NAUTILUS. 67 



OLIVA VARIEGATA (Bolten). 



Porphyria variegata Bolten, Mus. Boltenianum, sp. 393, p. 33, 

 1798. 



Porphyria reticulata Bolten, Mus. Boltenianura, sp. 396, p. 33, 

 1798. 



Oliva sanguinolenta Lam., Ann. du Mus., XVI, p. 316, 1810. 



Oliva evania Duclos, Monogr., in Comp. Rendus, II, tab. ^0, 

 figs. 3, 4, 1836. 



This species varies from the grayish-white reticulated form first 

 referred to by Bolten, to the dark, finely reticulated olive-green var. 

 reticulata. In the latter case both Bolten and Lamarck refer to the 

 same figures by Martini (Conch. Cab., II, tab. 48, figs. 512, 513). 

 The fascicle is always a bright orange red, the spire finely marked 

 with brown, and the two revolving bands usually quite distinct. A 

 number of specimens from Negros Island, Philippines, collected by 

 Mr. E. L. Moseley, are all the var. reticulata, and show but little 

 variation. Marrat is undoubtedly wrong in uniting Bolten's varie- 

 gata with Lamarck's tricolor. 0. evania is only a very light-colored 

 example. 



OLIVA TRICOLOR Lamarck. 



This species has the outline of variegata and net of elegans ; it has 

 the salmon-colored fascicle, but the color of the shell is very dif- 

 ferent from either. The dark specimens are bluish-green, with bands 

 of a slightly darker shade not brown ; the entire shell is spotted with 

 yellow, spire and lip coarsely marked with brown. Light-colored 

 specimens often have bright yellow and blue spots ; with the bands 

 obsolete or wanting, such specimens often resemble caerulea so closely 

 as to be only separated by the violet-colored aperture of the latter. 



OLIVA CAERULEA (Bolten). 



Porphyria caerulea Bolten, Mus. Boltenianum, p. 33, 1798. 



Oliva episcopalis Lamarck, Ann. du Mus., XVI, p. 313, 1810. 



Although the two authors refer to different figures there seems to 

 be no doubt as to their identity. Bolten refers to a very good figure 

 by Martini (Conch. Cab., II, tab. 48, fig. 518), while Lamarck cites 

 an uncolored though recognizable figure by Lister (tab. 719, fig. 3), 

 with a description of the species. The revolving bands which are 

 obsolete or wanting in the adult shell, are quite prominent in younger 

 specimens which closely resemble some variations of ispidula. 



