The margin of the upper mandible produced into a tooth; the vertex and above the body fuscous, with each feather towards the middle darker; the margins of the secondaries and wing coverts straw colour; the throat and breast pale brown, darker towards the middle of each feather; the sides and under tail-coverts cinereous white; the bill rufous fuscous, and the feet obscure lead colour. Habitat, Galapagos Archipelago. Mr. Gould considered this specimen a female, from the appearance of its plumage; but from dissection, I thought it was a male. 7. GEOSPIZA PARVULA. _Gould._ PLATE XXXIX. _G._ (Mas) _capite, gutture, et dorso fuliginosis; uropygio cinerascenti-olivaceo; caudâ et alis nigrescenti brunneis; singulis plumis caudæ et alarum, cinereo-marginatis; lateribus olivaceis, fusco guttatis; abdomine et crisso albis, rostro et pedibus nigrescenti-brunneis._ Long. tot. 4 unc.; _alæ_, 2⅜; _caudæ_, 1½; _tarsi_, ¾; _rostri_, ⅜; alt. _rost._ ⁵⁄₁₆. Fœm. _Summo capite et dorso cinerascenti-brunneis, gutture, pectore, abdomine crissoque pallidè cinereis, stramineo tinctis._ The head, throat, and back, sooty black; the lower part of the back cinereous olive; the tail and wings blackish brown, margined with cinereous; the sides olive with fuscous spots; the abdomen and under tail-coverts white; the bill and feet blackish brown. Female: The upper surface cinereous brown; the throat, breast, abdomen, and the under tail coverts, pale cinereous tinged with straw colour. Habitat, Galapagos Archipelago. (James’ Island.) [Illustration: _Birds. Pl. 39._ _Geospiza parvula._ ] [Illustration: _Birds. Pl. 40._ _Camarhynchus psittaculus._ ] [Illustration: _Birds. Pl. 41._ _Camarhynchus crassirostris._ ] 8. GEOSPIZA DUBIA. _Gould._ _G._ (Fœm. Mas ignot.) _summo capite et corpore suprà fuscis, singulis plumis cinerascenti-olivaceo marginatis; strigâ superciliari, genis, gutture, corpore infrà cinerascenti-olivaceis, singulis plumis notâ centrali fuscâ; alis caudâque brunneis singulis plumis olivaceo-cinereo marginatis; rostro sordidè albo, pedibus obscurè fuscis._ Long. tot. 3⅜ unc.; _alæ_, 2¾; _caudæ_, 1⅝; _tarsi_, ⅞; _rostri_, ⅝; alt. _rostri_, ⅜. Upper surface fuscous, with each feather margined with cinereous olive; the streak above the eye, cheeks, throat, and beneath the body, cinereous olive, with the middle of each feather fuscous; the wings and tail brown, with each feather margined with cinereous ash; the bill white, and the feet obscure fuscous. Habitat, Galapagos Archipelago, (Chatham Island.) SUB-GENUS.—CAMARHYNCHUS. _Gould._