A New Species of Oryzomys (Rodentia: Muridae) from Eastern Bolivia Author EMMONS, LOUISE H. Author PATTON, JAMES L. text American Museum Novitates 2005 2005-07-25 3478 1 1 27 http://www.bioone.org/perlserv/?request=get-abstract&doi=10.1206%2F0003-0082(2005)478%5B0001%3AANSOOR%5D2.0.CO%3B2 journal article 310250 10.1206/0003-0082(2005)478[0001:ANSOOR]2.0.CO;2 d1a49267-6e91-4f83-87d9-b3ea9e693924 0003-0082 5382998

TABLE 2 Descriptive Statistics (Mean, Standard Error, Sample Size, and Range) of Cranial Measurements of Four Species of the Oryzomys megacephalus Group

Species
TABLE 2 Descriptive Statistics (Mean, Standard Error, Sample Size, and Range) of Cranial Measurements of Four Species of the Oryzomys megacephalus Group
TABLE 2 (Continued)
Character	New species	laticeps	megacephalus	perenensis
Total length (TL)	264.57 6 4.86 7 241–282	275.75 6 2.60 4 271–281	236.08 6 3.52 12 218–257	261.56 6 3.36 25 227–303
Tail length (TaL)	119.57 6 2.80 7 110–130	130.00 6 2.55 4 123–135	112.00 6 2.63 12 95–126	125.92 6 2.07 25 107–151
Hind foot (HF)	29.43 6 0.57 7 27–31	33.0 6 0.41 4 32–34	28.08 6 0.38 12 27–31	32.15 6 0.29 27 29–35
Ear length (E)	21.43 6 0.37 7 20–23	22.25 6 0.48 4 21–23	21.92 6 0.29 12 21–24	21.11 6 0.19 27 19–24
Condylo­incisive length (CIL)	29.76 6 0.35 10 27.67–31.25	31.26 6 0.13 4 30.94–31.57	28.23 6 0.23 21 26.58–30.33	30.45 6 0.24 33 27.80–34.01
Occiptal condyle breadth (OCB)	7.14 6 0.06 9 6.92–7.38	7.04 6 0.05 4 6.96–7.16	6.58 6 0.05 19 6.28–7.11	6.86 6 0.05 33 6.13–7.43
Mastoid breadth (MB)	12.36 6 0.10 8 11.95–12.89	12.69 6 0.11 4 12.41–12.98	11.63 6 0.11 21 10.87–12.80	12.49 6 0.08 33 10.96–13.28
Basioccipital length (BOL)	4.86 6 0.06 9 4.64–5.24	5.26 6 0.10 4 5.03–5.50	4.48 6 0.07 21 4.14–5.07	4.66 6 0.05 33 4.05–5.25
Rostral length (RL)	10.26 6 0.16 10 9.11–10.70	12.64 6 0.18 4 12.31–13.13	11.02 6 0.18 4 9.43–12.31	12.39 6 0.17 33 9.96–14.22
Rostral width­1 (RW­1)	6.32 6 0.15 10 5.69–7.03	6.70 6 0.10 4 6.57–6.99	5.99 6 0.06 20 5.50–6.44	6.53 6 0.07 33 5.60–7.39
Rostral width­2 (RW­2)	5.21 6 0.11 10 4.63–5.77	5.83 6 0.05 4 5.72–5.93	5.16 6 0.06 21 4.62–5.63	5.31 6 0.05 33 4.51–5.81
Orbital fossa length (OL)	11.53 6 0.09 10 11.09–11.98	11.37 6 0.13 4 11.01–11.62	10.54 6 0.11 21 9.80–11.93	11.34 6 0.07 36 10.32–11.96
Nasal length (NL)	13.03 6 0.20 10 11.64–13.71	13.12 6 0.29 4 12.44–13.82	12.34 6 0.19 20 10.58–14.20	12.44 6 0.14 36 11.05–14.16
Least interorbital constriction (IOC)	4.87 6 0.07 10 4.52–5.23	5.31 6 0.09 4 5.04–5.43	4.97 6 0.07 21 4.46–5.61	5.36 6 0.03 36 5.04–5.65
Diastema length (D)	8.79 6 0.17 10 7.71–9.28	8.70 6 0.15 4 8.48–9.14	8.11 6 0.11 21 7.05–9.05	9.03 6 0.09 33 7.95–10.52
Character	New species	laticeps	megacephalus	perenensis
Palatal length (PL)	14.55 6 0.20 10 13.19–15.47	14.41 6 0.09 4 14.22–14.65	13.29 6 0.12 21 12.10–14.32	14.71 6 0.11 33 13.35–15.47
Alveolar width (AW)	6.13 6 0.07 10 5.76–6.38	6.42 6 0.20 4 6.03–6.84	5.87 6 0.05 21 5.40–6.32	6.26 6 0.05 33 5.66–6.73
Incisive foramen length (IFL)	4.74 6 0.11 10 4.32–5.46	4.83 6 0.14 4 4.41–5.04	4.40 6 0.07 21 3.87–5.04	4.69 6 0.05 33 4.14–5.26
Maxillary toothrow length (MTRL)	4.92 6 0.05 10 4.74–5.18	5.20 6 0.10 4 4.96–5.45	4.64 6 0.04 21 4.33–5.01	4.99 6 0.03 33 4.58–5.43
Zygomatic breadth (ZB)	16.77 6 0.31 9 15.05–17.96	16.85 6 0.17 4 16.44–17.25	15.80 6 0.14 20 14.81–17.46	16.92 6 0.11 33 15.32–17.87
Zygomatic plate length (ZPL)	3.81 6 0.12 10 3.14–4.24	3.83 6 0.08 4 3.74–4.05	3.44 6 0.06 21 3.02–3.88	3.76 6 0.07 33 3.20–4.87
Cranial depth (CD)	10.64 6 0.14 10 9.83–11.32	11.41 6 0.09 4 11.16–11.55	10.41 6 0.13 19 9.46–11.40	10.14 6 0.07 33 9.41–11.09
Mesopterygoid fossa length (MPFL)	5.29 6 0.13 8 4.62–5.78	5.06 6 0.17 4 4.81–5.53	4.79 6 0.09 18 4.33–5.94	5.13 6 0.06 33 4.45–6.21
Mesopterygoid fossa width (MPFW)	1.86 6 0.05 10 1.48–2.15	1.98 6 0.08 4 1.81–2.17	2.04 6 0.04 21 1.72–2.32	2.18 6 0.03 33 1.68–2.53