When the number of the specimen does not appear in the out- 

 line, it signifies that identification only is required. 

 Upon removing a specimen from the jar for study, dip it in 

 water and keep it moist until returned to the alcohol. After 

 the specimen is removed, cover the jar. Do not return jars to 

 the shelf until the rubber gaskets and metal clamps are 

 properly adjusted. The jars should be replaced according 

 to their serial nvunber. 

 (i). Make a drawing of the oral disk to show the supraoral 



lamina. From a medisected head, make a sketch of 



the nostril and nasal cecum. 

 (3). Make a drawing to show the differences of the sexes. 

 (6). Determine the sex. What are the short appendages on 



the dorsvim of the snout ? 

 (7) . Examine a prepared skull, and note the fontaneUe on the 



middle line of the dorsum. 

 (10). Make a drawing of the left side of the head to show 



characteristics of the breeding male. Make a sketch 



of the dorsal fin to show one of the specific distinc- 

 tions. 

 (11). Make a sketch of the ventral fin to show accessory scale. 

 (16). Make a drawing of the left side of body. 

 (17). Compare the head with that of a pickerel and a muskal- 



lunge. Make a drawing of the cheek and opercular 



region of each. 

 (22). Drawing of left side. Compare with the pipefish. 



Note opening of brood pouch in male. 

 (31). Make drawing of left side of head. Compare with 



small-mouthed black bass. Make a drawing. 

 (32). Young of number 31. Make drawing of left side to 



show color pattern. 

 (37). Drawing of head and pectoral region. Note suborbital 



stay. 

 (38). Drawing of left side. Label parts. 

 (40). Drawing of the right side. Compare the lateral line 



with that of Paralichthys, in which this structure is 



strongly arched in front. 

 (41). Jar of miscellaneous fishes to be identified, if time per- 

 mits. 



