no. 3635 MONOPHYLLUS — SCHWARTZ AND JONES 11 



Specimens examined. — Cuba: Habana Province: Cueva de 

 Cotilla, 9 km southwest of San Jose de las Lajas, 3 cf , 2 9 (AS 4776- 

 80); Cueva de la Numancia, Aguacate, 1? (AMNH 176156). Oriente 

 Province: Baracoa, 4^,29 (USNM 113668, 113671-73, 113675-76); 

 Cueva de la Majana, Baracoa, 10 <?, 10 9 (MCZ 11658, 16663-65, 

 16667-69, 16671-73, 16675, 16681, 16684, 16688-89, 16694-95, 

 16697-98, 16700). Haiti: Departement du Sud: Grotte la Foret, 

 9 km west-southwest of Jeremie, 6 cf, 2 9 (AS 5599-606); 8 miles 

 west-southwest of Jeremie, 7 d\ 9 9 (USNM 219152-58, 219160-63, 

 219165, 219167-68, 219171, 219174). Departement de PArtibonite: 

 St. Michel de FAtalaye, 1 (USNM 253646). 



Monophyllus redmani portoricensis Miller 



Monophyllus portoricensis Miller, 1900, p. 34. [Type-locality: cave near Bay- 

 am6n, Puerto Rico.] 



Distribution. — Known only from Puerto Rico (see fig. 1). 



Definition. — A subspecies of M. redmani characterized by small 

 size (total length 60-71, mean 65.0), short forearm (35.5-38.5, mean 

 36.9), small skull (greatest length 19.0-20.4, mean 19.9) with narrow 

 postorbital and mastoid regions, and narrow zygomata, and short 

 toothrows. The color is medium brown. 



Remarks. — The subspecies M. r. portoricensis, although of about 

 the same body size as M. r. clinedaphus, has a distinctly shorter forearm 

 and smaller skull. Greatest length of skull will separate M. r. portori- 

 censis (19.0-20.4) from the other subspecies of M. redmani (21.0-23.9). 

 Nonoverlap of cranial measurements occurs also in condylobasal 

 length and length of maxillary toothrow; other skull measurements 

 average smaller, but there is some overlap in these dimensions, the 

 greatest being between M. r. portoricensis (high extreme 8.8) and 

 Hispaniolan M. r. clinedaphus (low extreme 8.6) in mastoidal breadth. 

 The forearm of M. r. portoricensis is distinctly shorter than those of 

 the subspecies M. r. redmani and M.r. clinedaphus, both of which, 

 despite a discrepancy of body size, have forearms of comparable 

 lengths. Mensural data for 22 specimens of M. r. portoricensis are 

 given in tables 1 and 2. 



Freshly collected M. r. portoricensis seem intermediate in depth of 

 dorsal pigmentation between the darker M. r. redmani and the paler 

 M. r. clinedaphus. Such color differences are very difficult to assess, 

 owing to the age of the skins involved. The color differences among 

 all subspecies of M. redmani are slight at best ; verification of supposed 

 differences in pelage among the races must await the availability of 

 fresh specimens from throughout the range of the species. 



Anthony (1918, p. 349) commented that M. r. portoricensis was 

 uncommon in Cueva de Fari near Bayamon but was the most abun- 



