Part 12

Range.--Northwestern part of state in semitropical areas.

Remarks.--Goldman (1911:38) records specimens from Los Reyes, noting that in some cranial features they suggest intergradation between L. p. plantinarensis and L. p. parviceps.

=Liomys pictus parviceps= Goldman

Western Spiny Pocket Mouse; Spanish, RatA cubedn Espinoso Occidental

Liomys parviceps Goldman, Proc. Biol. Soc. Washington, 17:82, March 21, 1904, type from La Salada, "40 miles south of Uruapan, MichoacAin."

Liomys pictus parviceps Goldman, N. Amer. Fauna, 34:38-39, September 7, 1911.

Range.--Southern part of state in semitropical and tropical areas.

Specimens examined, 28: nos. 100185-100199, 52072-52084, distributed by localities as follows: Apatzingan, 1,040 ft., 13; 1 mi. E and 2-1/2 mi. S TacAimbaro, 4,700 ft., 4; 4 mi. S and 1 mi. E TacAimbaro, 4,500 ft., 5; 1 mi. E and 6 mi. S TacAimbaro, 4,000 ft., 6.

Remarks.--Most measurements show a sexual dimorphism in this subspecies. Adult males are 15 per cent larger in external measurements except that the foot is approximately the same. Cranial measurements average approximately 5 per cent larger in males except that the breadth of the rostrum and length of the maxillary tooth-row are slightly less. South and east of TacAimbaro our specimens all were taken in dry semitropical country, where bananas and sugar cane were the principal crops grown. This subspecies has been recorded also from La Huacana, MichoacAin, as well as from La Salada, the type locality, by Goldman (1911:39).

=Liomys irroratus jaliscensis= (Allen)

Northern Spiny Pocket Mouse; Spanish, RatA cubedn NorteA+-o

Heteromys jaliscensis Allen, Bull. Amer. Mus. Nat. Hist., 22:251, July 25, 1906, type from Las Canoas, approximately 20 mi. W ZapotlAin, 7,000 ft., Jalisco.

Liomys irroratus jalicensis, Goldman, N. Amer. Fauna, 34:60, September 7, 1911.

Range.--Northwestern part of state.

Specimens examined, 3: nos. 120273-120275 (U. S. Nat. Mus.) from Zamora.

Remarks.--As explained in detail by Hall and Villa (1948:254) these specimens from Zamora are intergrades between L. i. jaliscensis and L. i. acutus and with almost equal propriety could be referred to either subspecies.

=Liomys irroratus acutus= Hall and Villa

Northern Spiny Pocket Mouse; Spanish, RatA cubedn NorteA+-o

Liomys irroratus acutus Hall and Villa, Univ. Kansas Publ., Mus. Nat. Hist., 1:253, figs. 4-6, July 26, 1948, type from 2 mi. W PAitzcuaro, 7,700 ft., MichoacAin.

Liomys irroratus alleni, Goldman, N. Amer. Fauna, 34:57, September 7, 1911, part.

Range.--PAitzcuaro and vicinity.

Specimens examined, 16: nos. 100170-100184 and 50356 (U. S. N. M.), distributed, with reference to PAitzcuaro, as follows: 3 mi. NW, 6,700 ft., 1; 2 mi. W, 7,700 ft., 5; 2 mi. W, 6,700 ft., 2; PAitzcuaro itself, 1; 5 mi. S, 7,800 ft., 7.

Remarks.--None of the eight females contained embryos. Two adult males weigh, in grams, 71.5 and 65.1; the average and extreme weights for five adult females are 50.8 (44.8-61.8).

=Liomys irroratus alleni= (Coues)

Northern Spiny Pocket Mouse; Spanish, RatA cubedn NorteA+-o

Heteromys alleni Coues, Bull. Mus. Comp. ZoAśl., 8:187, March, 1881, type from RA-o Verde, San Luis PotosA-, MA(C)xico.

Liomys irroratus alleni Goldman, N. Amer. Fauna, 34:56, September 7, 1911.

Range.--Northeastern part of state.