258 



Crypticus supereiliosus, Sw. An. in Men. p. 267 ; Less. Desc. d. 

 Mamm. et Ois. p. 267. 



Crypticus apiaster, Less. R. Z. 1842, p. 174. 



Momotus yucatanensis, Cabot, Pr. N. H. Soc. Boston, iv. 467 ; 

 Gray, Gen. p. 68. sp. 13. 



Prionites yucata7iensis, Bp. Consp. p. 165. 



Olivaceus ; dorso medio, macula post-oculari et ventre imo casta- 

 neis : superciliis latis et macuHs subocularibus Icete glauco- 

 cyaneis : vitta per oculos utrinrpie transeunte nigra : vitta 

 gidari longitudinali nigra, utrinąue cyaneo marginata : alis 

 nigris extus cyaneo marginatis: rectricibus subtus nigricanti- 

 bus, supra ccerulescentibus, nigro terminatis : dtiarum media- 

 rum raehide nuda longissima, apice spatulata. 

 Long. totą 14" O, alse 4 "5, caudse 8'0. 



Hab. Central America, Yucatan {Cabot) ; Bay of Campeachy 

 (M. B.) ; Guatimala and Hondūras. 



This beautiful bird, with the peculiar incurved bill — the serratiou 

 of which is eonfined to the middle of the mandibles — and compara- 

 tively short tail, with the two medial rectrices far projecting and de- 

 nnded to a much greater extent than in other Motmots, seems to 

 present characters qnite as distinctive as Hylomanes or Vrionirhyn- 

 chus, and T have accordingly proposed for it the new generic name 

 Eumomota. Prince Bonaparte has remarked (Notės Orn. p. 89) 

 that there seems to be two varieties of this bird, one from the vvesteru 

 coast of Central America more red, the other from the eastern coast 

 raore blue. 



The preceding account embraces all the species of Motmots with 

 which I am acąuainted. There are a few others mentioned by 

 authors, concerning which I subjoin the following remarks : — 



1, Le motmot dombe, Levaill. Ois. de Par. i. p. 113. pi. 39. 

 Baryphonus ruficapillua, Yieill. Nouv. Dict. d'H. N. xxi. p. 31.5. 

 Prionites dombeyanus, Ranz. Elem. di Zool. iii. pt. 3. p. 158. 

 Momotus dombeyi, Less. Tr. d'Orn. p. 25) ; Less. Man. d'Orn. 

 p. 103. 



Momotus rubricapillus, Steph, Zool. xiv. p. 84. 

 Prionites dombeyi, Sw. Class. ii. p. 338. 

 Momotus rujicapillus, Gray's Gen. p. 68. sp. 4. 

 Prionites rujicapillus, Bp.'s Consp. p. 165. sp. 4. 

 Momotus tutu, Less. Descr. d. Mamm. et Ois. p. 265. 



Le Vaillant, upon the authority of whose figure some systematists 

 have formed and others adopted the several scientific names above 

 given, writes as follows concerning this Motmot : — " Whatever may 

 be the case with the second species of Motmot of the older writers, 

 which all nomenclatists have spoken of, but none have seen, here is 

 one well-characterized, and differing from the first in that it has all 

 the top of the head red, and that it has not part of the tail-feathers 

 ebarbed, nor a black spot on the stomach. All is otherAvise quite 

 similar in colonr between the two species, except that the green of 



