(2). 



neural Spine, zygopophyses. Are the vertebrae 

 studied, of the amphiccelian or opisthocoelian 

 type? 

 Tail or caudal vertebra. Compare with trunk 

 vertebra and identify parts. 



Pig. 2. The Trunk Skelton of the Striped Bass, Roccus lineatus. 

 After Starks. 



64. Precaudal vertebra 



6s. Caudal vertebra 



66. Centrum 



67. Neural arch 



68. Neural spine 



69. Hemal arch 



70. Hemal spine 



71. Zygapophyses 



72. Transverse process 



73. Rib 



74. Epipleurals 



75. Interneurals 



76. Dorsal rays and spines 



77. Interhemals 



78. Anal rays and spines 



79. Hypural 



80. Caudal rays 



III. FUl out chart I according to the directions of the instructor. 

 This is a summary of all the characters of classification con- 

 sidered in the foregoing study. 



IV. Identification of representative species with the aid of a manual. 

 Identification blanks will be employed for a record of the 

 characteristics of the order, family, genus, and species. The 

 number of the specimen is to be placed at the top of the sheet, 

 and after the identification is completed.the technical and com- 

 mon names of the species are to be written on lines provided 

 for the purpose. Remarks and drawings are to be made upon 

 the lower half of the sheet. All specimens are to be identified. 



