252 Miscellaneous. 
It will form a separate genus very distinct from Rhombognathus, to 
be characterized as follows :—Simognathus, g.n. Maxillary palpi 
dorsal, arranged as in Leptognathus; rostrum short and broad. Type 
Pachygnathus sculptus, Brady. This genus is to Rhombognathus 
what Leptognathus is to Halacarus. 
Another type charaeterized by Dr. Lohmann, although not found 
in the Baltic, is the genus Agaue. It is a southern type which 
makes its appearance first in the Bay of Biscay (Agaue brevipalpus, 
sp. n., from the oyster-beds of Areachon). In the Mediterranean 
this type seems to replace the genus Halacarus, which there has only 
two species (H. oculatus and H. levipes, sp. n.), while the genus 
Agaue has three species, namely A. hirsuta, sp. n., a robust type of 
considerable size (0°75 millim.), A. microrhyncha, sp. n., and A. 
brevipalpus, which is identical with the species from Arcachon. 
These three species occur upon the Corsican moss (Spherococcus 
helminthocorton) and the Corallines which live in the same localities. 
—Comptes Rendus, June 3, 1889, p. 1178. 
On a new Species of Chat. 
Dehesa de Cologan, 
Puerto Orotava, 
Tenerife, 
25th July, 1889. 
To the Editors of the Annals and Magazine of Natural History. 
GENTLEMEN,— 
I enclose you the description of a distinctly new species of Chat 
which I diseovered in the island of Fuerteventura in March 1888, 
This year I spent some weeks in the island and proeured several 
specimens, also its nest and eggs; these also are quite distinct, as 
are the breeding-habits of the bird. 
Yours faithfully, 
E. G. Mreapr-Watpo, 
Pratincola dacotie, sp. nov. 
P.g. Supra brunneo-nigra, fusco-limbata ; cauda brunnea, rectrici- 
bus extimis albo-limbatis ; loris et capitis lateribus nigris, linea 
supraoculari et postoculari alba; gula et thorace albis; pectoris 
cinctura pallide castanea, abdomine albido; hypochondriis et 
crisso albis, remigibus brunneis ; secundariis majoribus interiori- 
bus albis, reliquis albo-marginatis, rostro et pedibus nigris. 
@. Supra brunnea; gula, thorace et abdomine albidis, cinctura 
castanea pectoris pene obsoleta, aliter mari similis. 
Long. tot. 4°9, ale 2°5, caud. 2°3, rostr. -62, tars. °9. 
Hab, Ins. Fuerteventura, Mauritanice Dacos. 
