ICHTHYOLOGICAL GAZETTEER sl 
Ana. Extremely precipitous, with magnificent gorges, especially noteworthy at 
Macchu Picchu and at the Pongo de Mainique; the latter the most formidable 
barrier, the gateway to the lowlands, with cliffs almost sheer, 2000 feet in height. 
Pueblo Urubamba, on the upper river above Ollantaytambo. (Bowman.)** 
Urunuasti: below Macusani; Rio San Gabian, tributary of R. Inambari- 
Madre de Dios; another on the Apurimac 24 leagues from Cuzco. 
Uyunt: Bolivian city at southern extremity of Titicaca-Poopé basin; railway 
center and headquarters for collecting trips in southern Bolivia and Chile; above 
12000 feet; Salar de Uyuni, saline plain.* 
VerpDE, Laco: small lake at La Raya and headwaters of the Vilcanota.* 
Via CENTRAL: (Pichis trail); road and trail from Oroya to the head of canoe 
navigation on the Rio Pichis; traversing the Cadena de la Sal, elevation 6000 feet, 
through tropical and subtropical zones, 205 km. (128 miles) from La Merced to 
Puerto Bermudez; 9-12 days by mule; with numerous shelter houses conveniently 
spaced in an area otherwise total wilderness except at the beginning.* 
Vitcanota, Rio: river arising at La Raya, descending rapidly to form the 
Urubamba; cordillera of same name skirting it on eastern side; Nudo de Vileanota 
bridging the eastern and western ranges at La Raya.** 
VILQUE Cuico: village at head of bay of Huancané, at northern end of Lake 
Titicaca; many shallow areas and weedy shore-line.* 
XEBEROS: colonial and modern village in the delta country between the lower 
Huallaga and the Alto Maranon; described as an El Dorado, land of contentment 
and plenty, and out of lines of travel. 
YAHUARMAQUI (YAHUARMAYO?): farm, province of Convencién, Dist. Vil- 
cabamba, Dept. Cuzco; tropical. 
YAHUARMAYO, Rio: small tributary of the Rio Inambari, province Carabaya, 
Dept. Puno; entering from the right, flowing westward, north of Macusani. 
YANAHUANA ? or YANAHUANCA ? (doubtfully identical): village, and river, 
arising in western cordillera, near Goyllarisquisga, and flowing northeastward to 
the Huallaga at Ambo; elevations 7000-10000 feet. 
YANAMATE, LAGO: small lake near Cerro de Pasco. 
Yapaz (LuApPAz): first tambo, or shelter house, on Via Central.* 
YARINACOCHA (LLARINACOCHA): a cutoff lake, rather shallow and clear, 
entered from right bank of Rio Pacaya by a long, narrow channel.* 
Yunauyo: village and bay, on Lake Titicaca at the narrow isthmus forming 
the base of the Peninsula of Copacabana; mole built out into shallow, weed-grown 
bay; shipping point for sheep and alpaca wools.* 
YurimMaAGcuas: head of navigation on Rio Huallaga; town, provincial capital, 
cotton port; elevation 570 feet; eastern terminus of trails from Pacasmayo and 
Cajamarca over the mountains; between the mouths of Rios Shanusi and Par- 
anapura.* 
ZiGzAG: a switchback on the Cerro de Pasco railway, used to follow up a small 
tributary canyon of the Rio Mantaro in reaching the Pampa de Junin.* 
