r.ri.U\\. 176 



'iron (?) e&aritf WATSON, .J>urn. Linn. Sor. Lond., xvii, p. 



-A. (An. ,..; \v \,.., rimll. iiVp. Qantr., p, 683, pi. 



47, f. 7. 



This species is very slightly like Actceon exilw Jeflfr., still n 

 ActcKon bovetentis Seguenza, but is obviously different from both. 



Genus BULLINA Ferussac, 1821. 



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

 Ittn Brug., />////x/x, <tmi>lustre, acabra and velum Dillw. II. it A. A i>., 

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

 563Bullivula (Beck) SWAINS., Malacol. p. 360, type B. /ineatfi 

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



Shell oval, generally rimate, with liort, projecting spire, sinitstral 

 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 coluni- 

 ella vertical, often with an indistinct fold above, obliquely 

 at base. Operculum small, horny, linear, transverse. Tj.pe 



This genus differs from other Actceonidto in the style of coloring, 

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

 tion of the colurnella, more marked than in Ridaxis. 



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

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

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

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

 uiere described no species under that name, and Frrussac did not 

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

 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 error? in 1-Yru-sac'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 (Iiiani by Fivyrim-t, 

 and subsequently described by Quoy as Bull<rn gunnim* . This 

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

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

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

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

 Bul/ina ; too many guesses being involved in either case. F<'r 

 included also in Bnlliuo, " B. <n/////">Yrf," the type of the prior genus 



