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differences in the bill indicate that they are the remains of a larger and more varied family, once inhabiting more extensive land surfaces in the Pacific.
FAMILY 26.-CEREBIDÆ (11 Genera, 55 Species.)
. (According to the arrangement of Messrs. Sclater and Salvin.)
The Cerebidæ, or Sugar-birds, are delicate little birds allied to the preceding families, but with extensile honey-sucking tongues. They are almost wholly confined to the tropical parts of America, only one species of Certhiola ranging so far north as Florida. The following is the distribution of the genera :
Diglossa (14 sp.), Peru and Bolivia to Guiana and Mexico; Diglossopis (1 sp.), Ecuador to Venezuela; Oreomanes (1 sp.), Ecuador; Conirostrum (6 sp.), Bolivia to Ecuador and Columbia; Hemidacnis (1 sp.), Upper Amazon and Columbia ; Dacnis (13 sp.), Brazil to Ecuador and Costa Rica ; Certhidea (2 sp.), Galapagos Islands ; Chlorophanes (2 sp.), Brazil to Central America and Cuba; Cæreba (4 sp.), Brazil to Mexico; Certhiola (10 sp.), Amazon to Mexico, West Indies, and Florida ; Glossoptila (1 sp.), Jamaica
FAMILY 27.—MNIOTIJ.TIDÆ. (18 Genera, 115 Species.)
(Messrs. Sclater and Salvin are followed for the Neotropical,
Baird and Allen for the Nearctic region.) The Mniotiltidæ, or Wood-warblers, are an interesting group of small and elegant birds, allied to the preceding family and io the greenlets, and perhaps also to the warblers and tits of Europe.
They range over all North America from Panama to the Arctic regions, but do not extend far beyond the tropic in Southern America. They are almost as abundant in the Nearctic as in the Neotropical region ; and considering the favourable condi. tions of existence in Tropical America, this fact, in connection with their absence from the South Temperate zone would lead us to suppose that they originated in North Temperate America, and subsequently spread southward into the tropics. This supposition is strengthened by the fact that their metropolis, in the breeding season, is to the north of the United States. The genera adopted by Messrs. Sclater and Salvin are as follows:
(918) Siurus (4 sp.), Venezuela and West Indies to Eastern States and Canada; Mniotilta (1 sp.), Venezuela, Mexico, and Antilles to the Eastern States ; Parula (5 sp.), Brazil to Mexico, and the Eastern States, and Canada; Protonotaria (1 sp.), Antilles to Ohio; Helminthophaga (8 sp.), Columbia to Arctic America Helmintherus (2 sp.), Central America to Eastern States; Perissoglossa (1 sp.), Antilles and Eastern States; Dendræca (33 sp.), Amazon to Antilles, and Arctic America, and south to Chili; Oporornis (2 sp.), Guatemala to Eastern States; Geothlypis (11 sp.), all North America and Brazil ; Myiodioctes (5 sp.), all North America and Columbia ; Basileuterus (22 sp.), Bolivia and Brazil to Mexicu; Setophaga (15 sp.), Brazil to Canada ; Ergaticus (2 sp.), Guatemala and Mexico; Cardellina (1 sp.), Guatemala and Mexico; (1440) Granatellus (3 sp.), Amazon to Mexico ; (1441) Teretristis (2 sp.), Cuba; (1439) Icteria (2 sp.), Costa Rica and United States to Canada.
FAMILY 28.–VIREONIDÆ. (7 Genera, 63 Species.)
(Messrs. Sclater and Salvin are followed for the Neotropical gepera ; Professor Baird and Mr. Allen for those of the Nearctic region.)
The Vireonidæ, or Greenlets, are a family of small fly-catching birds wholly restricted to the American continent, where they range from Paraguay to Canada. They are allied to the Mniotiltidæ and perhaps also to the Australian Pachycephalidæ. Only two of the genera, with about a dozen species, inhabit the Nearctic region. The distribution of the genera is as follows :
Vireosylvia (13 sp.), Venezuela to Mexico, the Antilles, the Eastern States and Canada ; Vireo (14 sp.), Central America and the Antilles to Canada ; Neochloe (1 sp.), Mexico; Hylophilus (20 sp.), Brazil to Mexico; Laletes (1 sp.), Jamaica ; Vireolanius (5 sp.), Amazonia to Mexico; Cychlorhis (9 sp.), Paraguay to Mexico.
FAMILY 29.-AMPELIDÆ. (4 Genera, 9 Species.)
The Ampelidæ, represented in Europe by the waxwing, are a small family, characteristic of the Nearctic and Palæarctic regions, but extending southward to Costa Rica and the West Indian islands. The genera are distributed as follows:
(1539) Ampelis (3 sp.), the Palæarctic and Nearctic regions, and southward to Guatemala ; (1360) Ptilogonys (2 sp.), Central America; (1442) Dulus (2 sp.), West Indian Islands ; (1361) Phonopepla (1 sp.), Mexico and the Gila Valley.
FAMILY 30.-HIRUNDINIDÆ. ( 9 Genera, 91 Species.)
The Hirundinidæ, or Swallows, are true cosmopolites. Although they do not range quite so far north (except as stragglers) as a few of the extreme polar birds, yet they pass beyond the Arctic Circle both in America and Europe, Cotyle riparia having been observed in the Parry Islands, while Hirundo rustica has been seen both in Spitzbergen and Nova Zembla. Cotyle riparia and Chelidon urbica also breed in great numbers in northern Lapland, latitude 67° to 70° north. Many of the species also, have an enormous range, the common swallow (Hirundo rustica) inhabiting Europe, Asia and Africa, from Lapland to the Cape of Good Hope and to the Moluccas. The genera of swallows are not well determined, a number having been established of which the value is uncertain. I admit the following, referring by numbers to the Hand List :
(216 – 221 226 - 228) Hirundo (40 sp.), the range of the entire family; (222 223) Psalidoprogne (10 sp.), Tropical and South Africa; (224) Phedina (1 sp.), Madagascar and Mascarene Islands ; (225) Petrochelidon (5 sp.), North and South America and Cape of Good Hope; (229 — 232 ? 234) Atticora (8 sp.), the Neotropical region and ? Australia ; (235 237) Cotyle (11 sp.), Europe, India, Africa, North America, Antilles and Ecuador; (236) Stelgidopteryx (5 sp.), La Plata to United States ; (238 and 239) Chelidon (6 sp.), Palæarctic region, Nepal, Borneo ; (240 – 242) Progne (5 sp.), all North and South America.
FAMILY 31.—ICTERIDÆ. (24 Genera, 110 Species.)
The Icteridæ, or American hang-nests, range over the whole continent, from Patagonia and the Falkland Islands to the Arctic Circle. Only about 20 species inhabit the Nearctic region, while, as usual with exclusively American families, the larger proportion of the genera and species are found in the
tropical parts of South America. The genera adopted by Messrs. Sclater and Salvin are the following
Clypeicterus (1 sp.), Upper Amazon ; Ocyalus (2 sp.), Upper Amazon to Mexico ; Ostinops (8 sp.), Brazil and Bolivia to Mexico; Cassiculus (1 sp.), Mexico; Cassicus (10 sp.), South Brazil and Bolivia to Costa Rica ; Icterus (34 sp.), La Plata to the Antilles and United States; Dolichonyx (1 sp.), Paraguay to Canada; Molothrus (8 sp.), La Plata to Northern United States; Agelous (7 sp.), La Plata and Chili to Northern United States; Xanthocephalus (1 sp.), Mexico to California and Canada; Xanthosomus (4 sp.), La Plata to Venezuela; Amblyrhamphus (1 sp.), La Plata and Bolivia ; Gymnomystax (1 sp.), Amazonia and Guiana; Pseudoleistes (2 sp.), La Plata and Brazil; Leistes (3 sp.), La Plata to Venezuela ; Sturnella (5 sp.), Patagonia and Falkland Islands to Middle United States; Curcus (1 sp.), Chili; Nesopsar (1 sp.), Jamaica ; Scolecophgaus (2 sp.), Mexico to Arctic Circle; Lampropsar (4 sp.), Amazonia and Ecuador to Mexico; Quiscalus (10 sp.), Venezuela and Columbia to South and Central United States; Hypopyrrhus (1 sp.), Columbia; A phobus (1 sp.), Brazil and Bolivia; Cassidix (2 sp.), Brazil to Mexico and Cuba.
FAMILY 32.-TANAGRIDÆ. (43 Genera, 304 Species.)
The Tanagers are an extensive family of varied and beautiful fruit-eating birds, almost peculiar to the Neotropical region, only four species of a single genus (Pyranga) extending into the Eastern United States and Rocky Mountains. Southward they range to La Plata. They are especially abundant in the forest regions of South America east of the Andes, where no less than 40 out of the 43 genera occur; 23 of the genera are peculiar to this sub-region, while only 1 (Phlogothraupis) is