AULICA. 91 



Y. FLAVICANS, Gmelin. PI. 26, fig. tl ; PI. 27, fig. 84. 



Yellowish gray, fasciculated with brown beneath the sutures ; 

 surface marbled, strigated and reticulated with brown. 



Length, 3-3'75 inches. 



N. Australia. 



V. signifer, Brod., is an elongated flamcans, with the lip not 

 quite mature. V. Tissotiana, Crosse (fig. 84), is also a variety. 



Y. EXOPTANDA, Sowb. PI. 26, fig. 12. 



Pale rose-orange, densely promiscuously painted throughout 

 with sharply waved fine chestnut-red lines ; columella and interior 

 of shell orange-color. Length, 4 inches. 



Port Elliott and Port Lincoln, Australia. 



Is V. Hargreavesi, Angas (PI. 27, fig. 82), a possible variety 

 of this species ? 



Y. AUSTRALIA, Cox. PL 26, fig. 73. 



Reddish orange, with dark chestnut undulated longitudinal 

 markings Length, 2'5 inches. 



Bass Straits, Australia. 



The sutures are said to be vitrified, a character of the next 

 group, Amoria ; from which it differs in having only four colu- 

 mellar plaits. Appears to be rather too closely allied to V. 

 exoptanda. Mr. Brazier considers it a variety of V. undulata, 

 Lam. 



Y. GRAY^E, Crosse. PI. 26, fig. 74. 



Yellowish, with zigzag longitudinal brown lines, increased in 

 thickness so as to indicate three interrupted revolving bands. 



Length, 5'5 inches. 



Northwest Coast of Australia. 



Described by Gray as V. Maria-Emma, and the name very 

 properly changed by Crosse because not binomial ; and if per- 

 mitted to stand in this case, some Spaniard having baptismal 

 names enough to fill half a page might have them all immortal- 

 ized in a single species. This species is, so to speak, intermediate 

 between Aulica and Amoria, for to the nucleus characteristic of 

 the first group it unites the system of coloration and suture of 

 the second. 



