552 Eeport of State Geologist. 



n. ()i{1)i;k LONGIPENNES. 



LON(i-WIN(JKD SWIMMERS. 



a'. Covorinjj; of tipiur niiuulible of tliree distinct pieces; a terminal hook, a lateral 

 piece, and a core-like piece ovorhanfiiiifjj the nostrils. 



Stkkcorarhd.k. — .Jakgkrs, Eti-. IV 

 a^. Covering of upper mandible of a singh' piece pierced by the nostrils. 



LarID.K. — (lULLS AND TkRNS. V 

 [Inoludod in this order aro tlic Rhynclmpidic or Skiininors, the limits of whose range do 

 not reai'h this Stiito. The above key is not intondod to include Ihoni.J 



C. Ordioh 8TEGAN0P01)ES. 



DARTKltS, I'KLU'ANS, CORMORANTS. 



a^. Upper inivi\dibie hooked at tip. 



/''. Tarsns moderate, mncii longer tiian liind toe with claw. 

 e^. Bill shorter tiinn luiddic toe, compressed; gnlar sack small. 



I'liALACROcoRAriD.K.- Cormorants. VII 

 c'^. Hill niucli longer than middle toe, mueli llattene<l ; gular sack very large. 



I'Ei.KfANin.K. — I'klicans. VIII 

 6'. Tarsus very short, not longer than hind toe with claw ; wings and tail 

 excessively long, tlu' latter dee|>ly forked. 



Krkgatid.k.— Man-o'-War IUrds. IX 

 <(^. Upper manible not hooked at tip. Hill slender, nearly straight; tail long, 

 featliers very broad ; neck very long and slender. 



ANiiiNoin.K. Darters. VI 



I). OiwiAi ANSERKS. 



miOKS, (IKKSE AND SWANS. 

 Characteristics the sanu> as the order. Anatid.k — DuCKS, Etc. X 



E. Okdkh IlERODIONES. 



HERONS, STORKS, IBISES, Etc. 



a*. Sides of upper mandible with a deep, narrow groove extending from the nos- 

 trils to the tip. 

 /i'. Hill very broad, much llattened, and greatly widened toward the tip, only 

 the end bent down. l*LATAi,i;in.K. SrooNuiM,s. XI 



/»-. Bill slender, nearly round, gradually bent downward for nearly its wlude 

 length. liuDin.E. — ImsEs. XII 



a^. Sides of upper mandible without groove. 



c'. Middle toe nail with coml)-like inner edge; claws narrow, arched, and 



sharp pointed. .Vrdkid.k. — Herons, Etc. XIV 



0^. Middle toe nail with comb-like edge; claws broad and flat, resting on 



a horny j)ad or slu)e. Ck (iNim.v,. -Storks, Etc. XIII 



