WORM S, 



76. Bucchiutn* 



77. StrombuSi 



78. Murex. 



79. TrochuSk 



80. Turbs. 

 81 Helix, 



82. Nerita. 



83. Haliotis. 



*9. 



90. 



91. 



92. 



93- 



Aperture with a {mall canal leaning to the 



right. 

 Aperture with a fmall canal leaning to the left. 

 Aperture with a fmall flraight canal. 

 Aperture contracted and fomewhat fquare. 

 Aperture contracted and orbicular. 

 Aperture contracted, lunate on the inner fide* 

 Aperture contracted and femiorbicular. 

 Shell with a row of orifices along the furface. 



D. Univalves, without a regular Jpire. 



84. Patella. 



85. Dentalium* 



86. Serpula. 



87. Terede. 

 88- Sabella. 



Shell conic the aperture widened like a bafon. 

 Shell (lender fubulate, open at both ends. 

 Shell tubular, moftly ferpentine, adhering td 



other bodies. 

 Shell thin, pierced into wood... 

 Shell compofed of agglutinated grains of fand. 



IV, ZOOPHYTA. Compofite animals efflorefcing life 



vegetables. 



At With a hard calcareous jient. Lithophytes. 



Tubipcra. 



Madrcpora* 



Millepora. 



Cellepsra* 



Ifis. 



94 » Antipathes, 



95. Gorgonia. 



9$. Alcyonium. 



97- Spongia. 



9^* kluftra. 



99. Tubular i a. 

 loo. , Coral Una. 



1 01. " Sertularia. 



J 02. Pennatula* 



1 02 • Hydra 



Coral with cylindrical tubes. 

 Coral with concave ftars, 

 Coral with fubulate pores. 

 Coral with hollow round cells; 

 Stem (tony, 



B. With a fofterjlem. 



Stem horny, befet with fmall fpines, and 



covered with a gelatinous flefhy coat. 

 Stem horny, and covered with a cellular or 



vafcular coat, 

 Stem corky. 



Stem flringy flexile bibulous. 

 Stem covered with minute cellular poretf. 

 Stem tubular filiform, 

 Stem with fiiform calcareous joints. 

 Stem with filiform fibrous joints. 

 Stem coriaceous, refembling a quill. 

 Stem medullous naked, 

 VOL. IV.— B V. INFUSORIA. 



