CHECK LIST OF NOETH AMERICAN BIBDS. 129 



838. Puffinus amaurosoma Coucs. B . c 003. R 715. 



Spectral Shearwater. 



839. Puffinus tenuirostris Temm. B . c 604. R 716. 



Slender-billed Shearwater. 



840. Colymbus torquatus Brunn. B 698. c. 605. R 736. 



Great Northern Diver or Loon. 



841. Colymbus torquatus adamsi (Gr.) Coues. B . c 605. R 737. 



Yellow-billed Loon. 



842. Colymbus arcticus L. B 699. c eoe. R 738. 



Black-throated Diver. 



843. Colymbus arcticus pacificus (Lawr.) Coues. B 700. C 606a. R 739. 



Pacific Black-throated Diver. 



844. Colymbus septentrionalis L. B 701. c 607. R 740. 



Red-throated Diver. 



845. JEchmophorus occidentalis (Lawr.) Coues. B 704. c 608. R 729. 



Western Grebe. 



846. JEchmophorus occidentalis clarki (Lawr.) Coues. B705. C608. R730. 



Clark's Grebe. 



847. Podicipes griseigena holbcelli (Reinh.) Coues. B 702. c 6io. R 731. 



American Red-necked Grebe. 



838. P. a-mau-ro so'-ma. Gr. a.fj.avp6s, dark, dim, dusky, and o-cD^a, body. 



NOTE. This is probably Proc. grisea Gm., as held by Finsch and Salvin. 



839. P. ten-u-i-ros'-tris. See PrioceUa, No. 817. 



840. Co-lym'-bus tor-qua'-tus. The Latin coh/mbus is simply a transliteration from the Greek,. 



and has nothing to do, notwithstanding the great similarity, with the purely Latin 

 cohimba, a dove; the latter being not Greek at all, nor the former Latin, except as 

 directly transferred from the Greek. The two words are consequently not related, 

 unless it be in a radical manner; Corssen, however, considers them to be the same. Gr. 

 K6\u/j./3os or Ko\v/j.@is, a diver or swimmer; KoXv^oua, I dive, swim. The K6\v/j.0ts of 

 Aristotle was a species of grebe (Podicipes). Lat. torquatus, see Asyndesmus, No. 456. 

 " Loon " is an old Scotch word. See No. 874. 



841. C. t. a'-dams-I. To Dr. C. B. Adams, of the British Navy. 



842. C. arc'-ti-cus. See Sialia, No. 29. 



843. C. a. pa-ci'-fi-cus. See Anorthura, No. 77. 



844. C. sep-ten-tri-6-na'-lis. Lat. septentrionalis, northern; septentriones, the north, northern 



regions ; septem-trio, the constellation of the Wain. See Parus, No. 45. 



845. Aech-mo'-phor-us oc-cid-en-ta'-lls. Gr. alxfJ-ri, a spear, and <(>op6s, bearing; in allusion 



to the long, slender, sharp bill. For orciili ntaUx, see Dendrceca, No. 113. Grebe is a 

 French word, the meaning of which we do not know. 



846. A. o. clark'-I. To J. H. Clark. 



847. P6d-i'-ci-pes grls-ei'-gen-a hol'-bogl-li. The extraordinary word "podicops" has 



excited much curiosity, and stimulated some ingenious surmises. As it stands, podiceps 

 seems to be the Greek irovs, genitive TroSJs, foot, and the Latin termination -ce/>s, denot- 

 ing head ; and "foot-head " it has doubtless been taken to be by many, who, if thinking 

 of it at all, have felt vaguely that some allusion was intended to the bird's somersaulting 



