wide, with one or two series of rather large, thin cycloid scales. These scales perhaps covered the cheeks also in life. At present no other scales are present on the head in the typical example. Lower jaw prominent, projecting in front, but included at the sides. Teeth in jaws only, minute, sharp, closely and evenly set, much as in Icosteus ænigmaticus, but rather larger and less numerous.

Eyes large, lateral, longer than snout, their diameter contained about 4 times in the length of the head. Cheeks rather wide. Preopercle with a prominent crest, behind which are some radiating mucous cavities; the bone with a broad, prolonged, flexible membranaceous edge, covered with radiating striæ, each of which ends in a slightly exserted flexible point. Opercle and subopercle rather large, extremely thin, and each crossed by numerous conspicuous radiating striæ.

Gill-openings wide, not separated by an isthmus, the membranes not connected. Pseudobranchia present. Branchiostegals 7. Gill-rakers long, slender, sharp, their length nearly three-fourths the diameter of the eye. They are rather close-set and moderately stiff. Gills 4, a slight slit behind the posterior gill.

No bony stay connecting suborbital and preopercle.

Scales very small, apparently cycloid, soft and smooth to the touch, covering the body evenly, but becoming smaller below. Lateral line. nearly straight, apparently continuous, but not conspicuous on the middle part of the body. It does not run up on the caudal fin. There are on it no traces of the spinules, so conspicuous in Icosteus ænigmaticus. Scales (too small to be accurately counted) in about 120 transverse series.

Dorsal fin long and low, beginning opposite a point nearly midway between the vent and the base of the ventrals; the number of rays 39 to 40. All the rays are soft and articulated, and apparently all except the first are branched. The first rays are very low, the fin gradually rising posteriorly, the highest about one-third the length of the head. The base of the fin is somewhat scaly.

Anal fin entirely similar, but shorter, beginning slightly in front of the middle of the body (without caudal), and ending just in front of the last rays of the dorsal; its rays about 28.

Caudal broad, fan-shaped, on a slender peduncle; the accessory rays numerous and recurrent. The fin is broken, so that its outline cannot be ascertained.

Pectorals as in Icosteus, with the carpal bones slightly exserted, as if pedunculate, the base a little below the axis of the body, the outline rounded. The fin is short and small, its length less than that of the head.

Ventrals short and small, thoracic, placed a little behind pectorals, with one obsolete spine and five soft rays, one of which is slightly filamentous. The fin is about one-third the length of the head.

Fin rays not beset with spinules,

Vent normal, immediately in front of the anal, without papilla. Air-bladder apparently wanting. Pyloric coca about 6, rather long. Bones all soft and flexible, as in Icosteus ænigmaticus. The skin, however, not thick and tough, as in the latter species, but thin and scaled. Coloration in spirits plain brown, lighter below; the skin somewhat punctulate.

The single example of this species at present known was obtained in the market of San Francisco by Mr. W. G. W. Harford, with two of the original types of Icosteus ænigmaticus. It has been presented by the California Academy of Sciences, for whom it was originally obtained, to the United States National Museum. Its specific distinctness from Icosteus ænigmaticus was first noticed by Mr. Lockington, and we have seen fit to name the species for him, in recognition of his important work in Californian ichthyology.

The two species are called "deep-water fish" by the dealers.

As before noticed, the relations of this genus are evidently with the associated genus Icosteus, but the two genera bear little resemblance to any form known to us. They will probably constitute a distinct family or subfamily, in the Trachinoid group.

This family (Icosteida) may be defined as follows:

Body oblong, compressed. Head moderate, unarmed; the suborbital without bony stay. Mouth terminal, little oblique; the premaxillary not protractile; the maxillary slender. Teeth minute, sharp, erect, in one series on the jaws only. No barbels. Gills 4, a slit behind the fourth. Gill-openings wide; the membranes free from the isthmus. Gill-rakers slender. Branchiostegals 7.

Dorsal and anal fins long, without spines. recurrent accessory rays, on a slender peduncle. with the carpal bones slightly exserted. I, 4. Vent normal, without anal papilla.

Caudal fin, with many

Pectoral fins rounded, Ventral fins thoracic, 1, 5, or Pseudobranchia present.

Skeleton imperfectly ossified, the bones flexible, so that the whole body is limp and destitute of firmness.

The two genera may be thus compared:

* Head and body naked, covered with rather thick torgh skin; lateral line and fin rays beset with spinules. Dorsal and anal rather high, the body at their bases closely compressed. Dorsal rays, 50 to 55; anal rays, 35 to 40; ventrals rather long, I, 4

** Head partly and the body wholly covered with small scales. rays smooth. Dorsal and anal fins low, their bases little rays, 35 to 40; anal rays, 25 to 30; ventrals short, I, 5.. SAN FRANCISCO, CAL., March 12, 1880.

... ICOSTEUS. Lateral line and fins compressed. Dorsal ICICHTHYS.

CATALOGUE OF TROCHILIDÆ IN THE COLLECTION OF THE UNITED STATES NATIONAL MUSEUM.

By ROBERT RIDGWAY.

The following catalogue enumerates all the species of Humming Birds which are contained in the collection of the National Museum, with the localities represented, the latter being in many cases additional to those given in standard text-books relating to this family of birds. The chief aim of the list is to show what species are wanted to complete the collection, and exchanges to this end are respectfully solicited. Many of the species of the list are represented by an incomplete series of specimens, often by a single skin only, and of these additional specimens are desirable, especially if from a locality not mentioned in the list. Such species are indicated by an asterisk prefixed to the name.

The names and numbers correspond with those of Elliot's "List of Described Species of Humming Birds," published by the Smithsonian Institution.2

*1. Eutoxeres aquila (Bourc.) Reich.

Veragua.

4. Rhamphodon nævius (Dumont) Reich. Brazil.

6. Glaucis hirsuta (Gmel.) Boie.

Costa Rica; Trinidad; Grenada, W. I.; E. Peru (Pebas); Panama; "Brazil".

10. Glaucis cervinicauda (Gould) Salv. & Elliot.

E. Ecuador (Rio Napo); Brazil ?

11. Glaucis ruckeri (Bourc.) Gould.

Panama; Costa Rica.3

A few names are here changed in consequence of recent emendations.

List of Described Species of Humming Birds. By Daniel Giraud Elliot. Reprinted from a Synopsis of the Trochilidae in the Smithsonian Contributions to Knowledge. Washington: Smithsonian Institution, 1579. (Smithsonian Miscellaneous Collections, No. 334.)

3 Including the type of G. anca Lawr,

13. Phæoptila sordida Gould.

S. Mexico (Oaxaca).

* 16. Phaethornis yaruqui (Boure.) Gould.

Ecuador.

18. Phaethornis emiliæ (Bonre.) Bonap. Costa Rica; Colombia.

*19. Phaethornis augusti (Boure.) Bonap. Venezuela.

*20. Phæthornis pretrii Less.

Brazil.

*21. Phæthornis superciliosus (Linn.) Swains. Bahia.

22. Phæthornis longirostris (Less.) Caban. & Hein.

Mexico; Guatemala; Colombia (Turbo); Panama; E. Peru (Pebas);2

Chiriqui.

*23. Phaethornis hispidus (Gould) Gray.

E. Ecuador (Rio Napo).

*24. Phæthornis syrmatophorus Gould. Quito.

*25. Phaethornis anthophilus (Boure.) Gray & Mitch.

"Bogota".

*26. Phæthornis eurynome (Less.) Gray. Brazil.

*27. Phaethornis squalidus (Temm.) Bonap. Southern Brazil; Rio Negro.

*28. Phaethornis longuemareus (Less.) Gray.

Trinidad; "Brazil".

29. Phæthornis adolphi Gould.

Guatemala; Costa Rica; Panama; New Grenada (Turbo).

*30. Phæthornis griseigularis Gould.

Colombia.

*31. Phaethornis striigularis Gould.

Colombia.

36. Eupetomena macroura (Gmel.) Bonap.

Brazil (Bahia).

*37. Eupetomena hirundo Gould.

Bolivia.

38. Sphenoproctus pampa (Less.) Gould. Guatemala.

*39. Sphenoproctus curvipennis (Licht.) Gould. E. Mexico (Mirador).

1 Types of P. cassini Lawr.

A specimen (No. 55374) from Pebas, labeled in Mr. Lawrence's handwriting “P. moorei Lawr.," is not distinguishable from northern specimens of P. longirostris. It does not, however, agree with Mr. Lawrence's description of P. moorei, so that Mr. Elliot may be right in referring the latter to P. superciliosus.

* 40. Campylopterus largipennis (Bodd.) Cab. & Hein.

Cayenne.

42. Campylopterus rufus Less.

Guatemala (Dueñas; Guatemala City). *41. Campylopterus obscurus Gould. E. Peru (Pebas).

44. Campylopterus lazulus (Bonnatt.) Bonap.

Colombia; W. Peru.

45. Campylopterus hemileucurus (Licht.) Cab. & Hein.

E. Mexico (Jalapa); Honduras; Veragua; Guatemala; Costa Rica.

46. Campylopterus ensipennis (Swains.) Less.

Tobago.

* 47. Campylopterus villavicencio (Bourc.) Gould. Rio Napo.

* 50. Campylopterus roberti (Salvin) Gould. Guatemala (Choctum, Vera Paz).

*52. Aphantochroa cirrochloris (Vieill.) Gould. Brazil.

54. Cæligena clemencia Less.

E. Mexico (Mirador).

*55. Cæligena henrici (Less.) Cab. & Hein. Guatemala.

56. Cæligena viridipallens Bourc. & Muls.

Guatemala (Coban, Vera Paz; Guatemala City); "Mexico".

* 57. Cæligena hemileuca (Salvin) Elliot.

Costa Rica.

58. Lamprolæma rhami (Less.) Reich.

E. Mexico (Orizaba and Mirador); Guatemala (Guatemala City). 59. Oreopyra calolæma Salvin.

65. Oreotrochilus leucopleurus Gould.

Chili (Valle del Yero).

6. Lampornis violicauda (Bodd.) Elliot.

"Florida";1 Brazil (Bahia); Guiana; Venezuela; Panama; Colombia (Bogota and Cartagena); E. Peru (Pebas); Trinidad; Demerara.

Types of Audubon's works