no. 1824. NOTES ON THE GENUS LEPOMIS—BEAN AND WEED. 371 



geal bones and teeth of the type of Calliurus murinus Girard are much 

 heavier than those of Lepomis cyanellus. They more closely resemble 

 Lepomis euryorus McKay. 



We do not have the material available to determine the status of 

 Pomotis pallidus Agassiz which has been assigned to the genus 

 Eupomotis by Jordan and Evermann. 



Lepomis cyanellus, the type of the genus Apomotis has the pharyn- 

 geal bones thinner and lighter than in any of the other sunfishes 

 examined. The teeth, however, are heavier than in some other 

 species. (See pi. 50.) 



Lepomis auritus, the type of the genus Lepomis, has the pharyn- 

 geal bone heavier than in Lepomis cyanellus, with the teeth about the 

 same. (See pi. 4S.) 



Lepomis pallidus has the pharyngeal bone rather lighter than in 

 Lepomis auritus, but heavier than in Lepomis cyanellus. The teeth, 

 however, are finer than those of any other species which we have 

 examined. (See pi. 49.) 



In Lepomis megalotis the pharyngeal bones are similar to those of 

 Lepomis pallidus and the teeth are somewhat heavier. (See pi. 50.) 



Lepomis albulus has the pharyngeal bone about as heavy as in 

 Lepomis auritus but the teeth considerably thicker and blunter. 

 (See pi. 48.) 



Lepomis euryorus has the pharyngeal teeth about as in Lepomis 

 albulus, but the bone is heavier and broader and begins to show 

 the condition which Richardson describes for Eupomotis. (See 

 pi. 47.) 



Lepomis holbrooleii has the pharyngeal bone very heavy and the 

 teeth quite variable, but usually half of them, or a little less than half, 

 round molars. (See pis. 42 and 43. ) (Note variations in supplemental 

 maxillary.) 



The teeth of the type specimen of Lepomis heros are large molars 

 over practically the entire surface of the bone, which is broad but 

 not especially thick, much as in Lepomis gibbosus. Two specimens 

 from Indiana, labeled as this species, had the bones very broad and 

 thick as in Lepomis liolbrookii, but with a larger proportion of molar 

 teeth. (See pis. 44, 45, and 47.) 



Lepomis gibbosus, the type of the genus Eupomotis of Gill and Jor- 

 dan, has the pharyngeal bone very broad with very large molar teeth. 

 The bone, however, is rather thin as compared with that of L,epomis 

 holbrookii. (See pi. 46.) 



The genus Lepomis seems to us to be most certainly a natural 

 group. The species are so similar in squamation, coloring, number 

 of fin rays, and proportions that with a few well-marked exceptions, 

 perhaps only one exception {Lepomis gibbosus), it requires much 

 experience and long study to separate species. Adult specimens of 



