MANUAL OF CON( HOLOGY. 



MONOGRAPH OF THE FAMILY SOLARIIDjE, 



r,\ WILLIAM It. MARSIIALI.. 



lilt, Collrholn-h-nl MUM-IUIl ,,f th. 



of I'liilH.k 



FAMILY SOLARIID1E. 



Shell depressed conic, turbinate, or planorbiform ; ap- 

 entire, angular <r sul.circular ; lip and columd! 

 without nacre; umbilicus wide and dorp and u>nai: . 

 lated margins; main sculpture usually spiral. Operculum OO1 

 ous, spiral. 



Animal with very large, oval foot, notched in IV tacle* 



cylindrical, thick, with eyes sessile on swellings m-u t!i, 

 bases. Dentition variable. In Solarium (PI. 1, tigs. . . 

 Pliilii)piti (I'l. 1, fig. 8) the teeth are long, spiniform, pronged 

 without a central tooth. Jn Torinia (PI. 1, 11 ^s. 1 1 . 

 a small central tooth, a lateral tooth with p 

 edge united to the central tooth, and two margin ii 

 are straight and digitated at their extremities. Thejai 

 larium and that of Philippia arc liirun-d >n PI. 1. ti^>. 



The i>roper systematic position nt' the t:iinil\ S 

 long a matter of doubt l>y most ant ; -it assigned t> th- 



neiuliliorhood of Trochidsu. (Jray in 1S47 (Xool. Troc.. p. l 

 substituted for Solarium the name Arch I i.-h was 



evidently :i typographical error tor A 

 placed the genus in the Littorinida-. In 1850 (F 

 Anim.), lie i-ai-cd the n'ciiii- to the rank of a t'imiU . 

 it Architectomida-, he placed it 



Melanid.e. In 1853 (Zool. Proc.. vinir the an 



to be without teeth, he placed the family in his group Gymnu- 



(3) 



