Agua Caliente.—Lat. 16° 38'; long. 94° 48'; elev. 140 m. A hot spring, 6.9 km. north of La Ventosa on the Trans-isthmian Highway; arid scrub forest [43].

Arenal, Cerro de.—Lat. 16° 18'; long. 95° 32'; elev. 925 m. (crest). A ridge northeast of Tenango; scrub forest on slopes and pine-oak forest on top [64].

Barrio, El.—Lat. 16° 38'; long. 95° 07'; elev. 314 m. A village about 10 kilometers southwest of Matías Romero; transition between scrub forest and broadleaf hardwood forest [38].

Bisilana.—Lat. 16° 20'; long. 95° 13'; elev. 35 m. A place name for a former ranch at the edge of Tehuantepec; open arid scrub forest [62].

Chivela.—Lat. 16° 20'; long. 95° 01'; elev. 195 m. A village on the Trans-isthmian Railroad, 26 kilometers by rail south of Matías Romero and on the western edge of the semi-arid Plains of Chivela [40].

Concepción.—Lat. 16° 17'; long. 95° 29'; elev. 1200 m. A ranch on the slopes of Cerro Arenal, east-northeast of Tenango; dry pine-oak forest [66].

Coyol.—Exact position unknown; according to Smith and Taylor (1950: 10), Coyol is "between San Antonio and Las Cruces."

Donají.—Lat. 17° 13'; long. 95° 02'; elev. 90 m. A village at Km. 155 on the Trans-isthmian Highway; rainforest [29].

Escurano.—Lat. 16° 25'; long. 95° 27'; elev. 500 m. A ranch about 25 kilometers west-northwest of Tehuantepec; arid scrub forest [51].

Guichicovi, San Juan.—Lat. 16° 58'; long. 95° 06'; elev. 250 m. A village on the north slopes of the isthmus, 12 kilometers north-northwest of Matías Romero; cleared hardwood forest and coffee plantations [33].

Huilotepec.—Lat. 16° 14'; long. 95° 09'; elev. 30 m. A small village on the Río Tehuantepec, 13 kilometers south-southeast of Tehuantepec; open arid scrub forest [69].

Ixtepec.—Lat. 16° 34'; long. 95° 06'; elev. 60 m. A town and railroad junction on the northwestern edge of the Plains of Tehuantepec; arid scrub forest [45].

Juchitán.—Lat. 16° 26'; long. 95° 02'; elev. 15 m. A town on the Plains of Tehuantepec, 22 kilometers by road east-northeast of Tehuantepec; arid scrub forest [50].

Limón.—Lat. 16° 20'; long. 95° 29'; elev. 600 m. A former agrarian colony and now a small ranch about 27 kilometers west of Tehuantepec; arid scrub forest [60].

Matías Romero.—Lat. 16° 53'; long. 95° 02'; elev. 200 m. A town on the Trans-isthmian Highway and railroad in the hills near the crest of the isthmus; broadleaf hardwood forest and open pine-oak forest [36].

Mixtequilla.—Lat. 16° 24'; long. 95° 18'; elev. 40 m. A village on the Río Tehuantepec, northwest of Tehuantepec; dense scrub forest [57].

Modelo, El.—Lat. 17° 07'; long. 94° 43'; elev. 200 m. An old rubber plantation on the Río Chalchijapa, a tributary to the Río Coatzacoalcos; rainforest [31].

Nanches, Portillo Los.—Lat. 16° 35'; long. 95° 37'; elev. 500 m. A place name, about 4 kilometers southeast of Totolapilla; scrub forest [44].

Nizanda.—Lat. 16° 42'; long. 95° 02'; elev. 150 m. A village on the Trans-isthmian Railroad between Chivela and Ixtepec; dense scrub forest [42].

Nueva Raza.—Exact location unknown; according to Thomas MacDougall, this locality is in the lowlands of northern Oaxaca; rainforest.

Palmar.—Lat. 16° 43'; long. 94° 40'; elev. 300 m. A small ranch on the west base of Cerro Atravesado; scrub forest [39].

Papaloapan.—Lat. 18° 11'; long. 96° 06'; elev. 25 m. A small village on the Río Papaloapan in northern Oaxaca; low evergreen forest and savanna [11].

Princesa, La.—Lat. 16° 56'; long. 95° 02'; elev. 150 m. A ranch on the northern slopes of the isthmus, 6 kilometers by road north of Matías Romero; poorly developed rainforest [34].

Quiengola, Cerro de.—Lat. 16° 24'; long. 95° 22'; elev. 900 m. (crest). A hill 15 kilometers west-northwest of Tehuantepec; dense scrub forest on slopes and scattered pines on top [55].

Salazar.—Lat. 16° 25'; long. 95° 20'; elev. 45 m. A ranch on the Río Tehuantepec, northwest of Tehuantepec; dense scrub forest [52].

Salina Cruz.—Lat. 16° 10'; long. 95° 12'; sea level. A port on the Golfo de Tehuantepec; open arid scrub forest [70]. Collections were made in the vicinity of the town and in the open scrub forest 2.4 kilometers north at an elevation of 20 meters.

San Antonio.—Lat. 16° 15'; long. 95° 22'; elev. 40 m. A ranch about 25 kilometers west-southwest of Tehuantepec; arid scrub forest [68].

San Pablo.—Lat. 16° 24'; long. 95° 18'; elev. 40 m. A ranch on the Río Tehuantepec, northwest of Tehuantepec; dense scrub forest [56]. Cerro San Pablo probably is the hill north of this ranch; this is shown on some maps as Cerro de los Amates.

San Pedro, Cerro de.—Lat. 16° 18'; long. 95° 28'; elev. about 1100 m. (crest). A ridge about 24 kilometers west of Tehuantepec and east of Cerro Arenal; scrub forest on slopes and pine-oak forest on top [65].

Santa Efigenia.—Lat. 16° 25'; long. 94° 13'; elev. 500 m. A ranch on the southern slopes of the Sierra Madre de Chiapas, 8 kilometers north-northwest of Tapanatepec; scrub forest. Former home of Francis Sumichrast [53].

Santa Lucía.—Lat. 16° 18'; long. 95° 28'; elev. 800 m. A place name for a former ranch on the east slopes of Cerro Arenal; scrub forest [63].

Santa María Chimalapa.—Lat. 16° 55'; long. 94° 42'; elev. 296 m. A village on the Río de los Milagros, a tributary to the Río Coatzacoalcos; rainforest [35].

Santiago Chivela.—Lat. 16° 42'; long. 94° 53'; elev. 200 m. A village on the Trans-isthmian Highway, 13.4 kilometers by road south of Matías Romero; dry, grassy plains and scattered clumps of scrubby trees and palms [41]. Collections were made in the vicinity of the village and at a rocky stream, 11 kilometers south on the Trans-isthmian Highway at an elevation of 230 m.

Santo Domingo (Petapa).—Lat. 16° 50'; long. 95° 08'; elev. 225 m. A village about 13 kilometers west-southwest of Matías Romero; semi-arid scrub forest [37].

Sarabia.—Lat. 17° 04'; long. 95° 02'; elev. 100 m. A village 25 kilometers north of Matías Romero on the Trans-isthmian Highway; rainforest [32]. Collections were made in the vicinity of the village and in the rainforest along the Río Sarabia, 5 kilometers north of the village at an elevation of 80 meters.

Tapanatepec.—Lat. 16° 32'; long. 94° 12'; elev. 90 m. A town on the Pan-American Highway on the lower slopes of the Sierra Madre de Chiapas; dense scrub forest [58].

Tehuantepec.—Lat. 16° 20'; long. 95° 14'; elev. 35 m. A large town on the Plains of Tehuantepec; scrub forest [61]. Collections were made in the vicinity of the town and in the dense scrub forest 8.6 kilometers west at an elevation of 85 meters and 14 kilometers west at an elevation of 120 meters.

Tenango.—Lat. 16° 16'; long. 95° 30'; elev. 1100 m. A town in the mountains about 40 kilometers west-southwest of Tehuantepec; scrub forest [67].

Tequisistlán.—Lat. 16° 24'; long. 95° 37'; elev. 190 m. A village in the valley of the Río Tequisistlán, a tributary to the Río Tehuantepec; dense scrub forest [54]. Most collections were made about one kilometer north of the village where the Pan-American Highway crosses the Río Tequisistlán.

Tolosita.—Lat. 17° 12'; long. 95° 03'; elev. 80 m. A village on the Río Tortuguero near the Trans-isthmian Highway; rainforest [30].

Tres Cruces.—Lat. 16° 26'; long. 95° 51'; elev. 750 m. A ranch near the Pan-American Highway, 70 kilometers by road west-northwest of Tehuantepec; dense scrub forest [49].

Tuxtepec—Lat. 18° 06'; long. 96° 05'; elev. 80 m. A town on the Río Papaloapan in northern Oaxaca; low evergreen forest