The characters of the calcaneum mentioned by Cope as separating the two species will not hold good. In the American Museum collection there are three series of astragali and calcanea of C. anax; in the best-preserved specimen (No. 258) the sustentacular facet has an anterior prolongation; whereas in No. 273 the anterior portion is entirely absent. The sustentaculum in this specimen is of an oval form.

I have examined four sets of the astragali and calcanea of C. anax, and find that the characters of the inferior face of the astragalus are quite constant; I refer especially to the groove and foramen which are always placed on the astragalus between the ectal and sustentacular facets. In three specimens of the four the posterior opening of the groove is shut off by a bridge of bone connecting the ectal facet with the posterior median enlargement of the astragalus. In one specimen in the collection the bridge of bone is absent, and consequently there is a well-marked foramen; this specimen is associated with a calcaneum, in which the sustentacular facet is elongated.

The beautifully preserved pelvis in the American Museum collection has the same dimensions as that belonging to the type of B. pachypus; the femur, however, which is associated with it, is much smaller than that of B. pachypus. It is interesting to note that the American Museum femur has the same dimensions as that referred by Cope to the C. anax, thus offering more proof that C. anax and B. pachypus are the same species.

Manteodon subquadratus Cope.

Last superior molar quadrate in form; hypocone smaller than protocone; paracone compressed and elongated.

The genus Manteodon was established by Prof. Cope' upon an upper true molar (Fig. 2, F) with fragments of teeth. I think Prof. Cope has correctly identified the single superior molar associated with the type as the last one of the superior series. We have in this tooth interesting characters which show us the modifications through which the Coryphodon molar has undergone. The fact that the last superior molar of Manteodon is quadritubercular in structure is unique, and occurs in no other genus of this family. This may indicate that Manteodon is not in the direct

1 Proc. Am. Phil. Soc., 1881, p. 166.

line to Coryphodon; as in this case we should have to suppose the loss of the hypocone. The nearest approach to the rudiment of a hypocone on the superior molars of Coryphodon occurs in the C. elephantopus, although Marsh's figure of his C. hamatus probably indicates the presence of this cone in a rudimentary condition.

Ectacodon cinctus Cope.

Last superior molar rectangular, larger than second; postero-external cusp widely separated from posterior crest.

The type of this genus and species is a finely-preserved series of upper molars in Prof. Cope's collection.

In the E. cinctus (Fig. 2, G) the anterior crest of the last upper molar is high, and its external termination is connected with the basal portion of the crown by only one ridge. The internal cingulum of this tooth is complete. In the second upper molar the external termination to the posterior limb of the crescent forms a prominent cusp, which is homologous with the postero-external cusp of the second superior molar of C. testis.

In this tooth the crescent is complete, and not reduced as in the latter.

This species is more closely related to C. radians than to any other, this being shown by the fact that in C. radians the last superior molar has traces of the posterior limb to the crescent; the postero-external cusp of Ectacodon being the remains of this posterior limb in the latter species.

C. elephantopus approaches the E. cinctus in the nearly square form of its last superior molar, but lacks the postero-external cusp of the latter.

I am doubtful whether Ectacodon should hold a generic rank, but as there are no direct transition forms as yet known between it and Coryphodon I retain it for the present.

In conclusion I wish to add, that owing to the material referable to the species of Coryphodon having been, in most cases, found so widely dissociated, it has been impossible to state accurately their number. I am convinced that the large number of species which have been founded by Prof. Cope should be greatly reduced; and that in many cases his species are to be considered merely varieties, and that often these varieties are merely individual variations in the same species due to age and sex.

Article XIII.-LIST OF TYPES OF LEPIDOPTERA IN THE EDWARDS COLLECTION OF INSECTS.

By WILLIAM BEUTENMÜLLER.

The object of the present paper is to place on record a list of the types of Lepidoptera in the collection of insects formed by the late Henry Edwards, which is now the property of the Museum. The collection consists of about 250,000 specimens and about 25,000 species, representing all the orders, and gathered in various parts of the globe. It is especially rich in Australian species, and in North American species from the Pacific Coast. A large number of Lepidoptera from this country were described by Mr. Edwards, and most of his types are in the collection, as well as many types of species described by other writers. The following list enumerates 465 species, which, together with the list' of 70 types from the Grote and Robinson collection, already recorded, aggregates 535 species of Lepidoptera, the types of which are now in the Museum collection. Catocala angusii Gr., Catocala residua Gr., Attacus cinctus Tepper, mentioned in the present list, are from the collection of insects recently donated to the Museum by James Angus, Esq.; and Euclea elliotii Pears. is from the Elliot collection, otherwise all are in the Edwards collection.

PAPILIONIDE.

Papilio pergamus Hy. Edw., Proc. Cal. Acad. Sc., Vol. V, P. 423. One male, Santa Barbara, Cal.

Parnassius clodius var. menetriesii Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 164.-Male and female, Sierra Nevada, Cal.

Parnassius smintheus var. hermodur Hy. Edw., Papilio, Vol. I, p. 4.-Two females, Southern Colorado.

Parnassius eversmanni var. thor Hy. Edw., Papilio, Vol. I, p. 2. One female, Yukon River, Alaska.

1 Bull. Am. Mus. Nat. Hist., Vol. IV, pp. 59-64.

Anthocharis ausonides var. coloradensis Hy. Edw., Papilio, Vol. I, p. 50.-Male and female, Colorado.

Colias harfordii Hy. Edw., Proc. Cal. Acad. Sc., Feb. 5, 1877. Five males, California.

Colias chrysomelas Hy. Edw., Proc. Cal. Acad. Sc., Feb. 5, 1877. Two males, Napa Co., Cal.

Colias barbara Hy. Edw., Proc. Cal. Acad. Sc., Feb 5, 1877. Two females, Santa Barbara, Cal. (=C. harfordii, .)

Colias eurydice var. amorphæ Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 169.-One male, Mendocino Co., Cal.

Colias moina Strk., Bull. Brooklyn Ent. Soc., Vol. III, p. 34. Two females, Labrador.

Colias interior var. laurentina Scud., Proc. Boston Soc. Nat. Hist., Vol. XVIII, p. 189.-One female, Cape Breton Island.

NYMPHALIDÆ.

Argynnis liliana Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 170.-Three males, two females, Napa Co., Cal.

Argynnis columbia Hy. Edw., Proc. Cal. Acad. Sc., Dec. 17, 1877. Two males, British Columbia.

Argynnis bischoffii Edw., Trans. Am. Ent. Soc., Vol. III, p. 189.-One female, Alaska.

Argynnis opis Edw., Trans. Am. Ent. Soc., Vol. V, p. 105.-One female, British Columbia.

Argynnis monticola var. purpurascens Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 170.-Three males, two females, Mt. Shasta, Cal.

Melitæa rubicunda Hy. Edw., Papilio, Vol. I, p. 52.-Four males, three females, Sierra Nevada, Cal.

Melitæa chalcedon var. dwinellei Hy. Edw., Papilio, Vol. I, p. 51.-Four examples, Shasta Co., Cal.

Melitæa nubigena var. wheeleri Hy. Edw., Papilio, Vol. I, p. 52. Male and female, Southern Nevada.

Melitæa leanira var. obsoleta Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 171.-Four examples, Marin Co., Cal.

Limenitis lorquinii var. eavesii Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 172.-One example, Virginia City, Nevada.

Cœnonympha california var. eryngii Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 172.-Three examples, Mt. Shasta, Cal. Cœnonympha california var. pulla Hy. Edw., Papilio, Vol. I, p. 51. One male, San Mateo, Cal.

LYCENIDE.

Thecla melinus var. pudica Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 172. One male, Contra Costa Co., Cal.

Thecla putnami Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 143. One specimen, in poor condition, Utah.

Thecla spadix Hy. Edw., Papilio, Vol. I, p. 53. Two females, Tehachepi Pass, Southern California.

Thecla sæpium var. fulvescens Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 172.-Two examples, Havilah, Cal. One example, Tehachepi Pass, Cal.

Thecla nelsoni var. exoleta Hy. Edw., Papilio, Vol. I, p. 53-Two females, Big Tree, Calaveras Co., Cal.

Thecla nelsoni var. muiri Hy. Edw., Papilio, Vol. I, p. 53. Male and female, Mendocino Co., Cal.

Thecla adenostomatis Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, p. 144. Two examples, Tehachepi Pass, Southern California. Thecla irus var. mossii Hy. Edw., Papilio, Vol. I, p. 54.One male, Vancouver Island.

Lycæna clara Hy. Edw., Proc. Cal. Acad. Sc., Dec. 17, 1877. Three examples, Tehachepi Pass, Southern California.

Lycæna speciosa Hy. Edw., Proc. Cal. Acad. Sc., Vol. VII, P. 173. One male, Havilah, Kern Co., Cal.