BULLTNA. 175- 



Actceon (?) chariis WATSON, Journ. Linn. Soc. Lond., xvii, p. 

 288. A (Acteonina) chariis WATS., Chall. Rep. Gastr., p. 633, pi. 

 47, f. 7. 



This species is very slightly like Actceon exilis Jeffr., still more 

 Actceon bovetensis Seguenza, but is obviously different from both. 



Genus BULLINA Ferussac, 1821. 



Bullina FER., Tab. Syst, p. xxx, 1821, proposed for Bullaundu- 

 lata Brug., physis, amplustre, scabra and velum Dillw. H. & A. AD., 

 Gen. Rec. Moll., ii, p. 8. A. AD., in Sovvb., Thesaurus Conch., ii, p. 

 563. Bullinula (Beck) SWAINS., Malacol. p. 360, type B. lineata 

 Sow., Man. f. 253. GRAY, P. Z. S. 1847, p. 162. 



Shell oval, generally rimate, with short, projecting spire, sinistral 

 apex, and large, swollen body-whorl ; rather thin, spirally punctate- 

 grooved, decorated with red or brown lines. Aperture about three- 

 fourths the shells' length, narrow above, widened below; the colum- 

 ella vertical, often with an indistinct fold above, obliquely truncated 

 at base. Operculum small, horny, linear, transverse. Type B. scabra. 



This genus differs from other Act(eonidce in the style of coloring,, 

 the rather large distorted apex, and the very distinct basal trunca- 

 tion of the columella, more marked than in Rictaxis. 



In Ferussac's publication of the name Bullina, no diagnosis is 

 given, and his list of species includes representatives of four genera. 

 The first species named, '' Bullaundulata Brug." (evidently an error 

 for B. undata Brug.), cannot be considered the type because Brug- 

 uiere described no species under that name, arid Ferussac did not 

 even have the true undata Brug. in mind, his "undulata" being 

 probably an Oriental species. It would hardly be allowable to fol- 

 low a type through paths so devious, especially when the identifica- 

 tion rests upon the correction of two errors in Ferussac's work^ 

 on purely hypothetical grounds: first, that by "undulata Brug.," 

 Ferussac meant " undata Brug. ; " and second, that by this name he 

 intended to indicate the species brought from Guam by Freycinet, 

 and subsequently described by Quoy as Bullcea guamense. This 

 inference is based upon Ferussac's words, " deux tentacules dis- 

 tincts," his information being probably obtained from Freycinet's 

 specimens. It seems to me that we can hardly agree with Martens 

 that B. guamensis, or with Fischer that B. undata is the type of 

 Bullina ; too many guesses being involved in either case. Ferussac 

 included also in Btillina, " B. amplustre" the type of the prior genus 



