141:
20:
182:
122:
101:
35:
are those on top of the head between the scales that surround the nostrils. They are usually paired and situated just behind the
175:
201:
96:. Ithaca and London: Comstock Publishing Associates. (7th printing, 1985). 1,105 pp. (in two volumes).
206:
168:
89:
19:
118:
97:
152:
70:
195:
53:
36:
65:
48:
140:
117:. United States Government. New York: Dover Publications Inc. 203 pp.
28:
148:
18:
156:
94:Handbook of Snakes of the United States and Canada
176:
8:
16:Scales that surround the nostrils of snakes
183:
169:
23:Nomenclature of scales (top view of head)
82:
7:
137:
135:
155:. You can help Knowledge (XXG) by
14:
139:
1:
115:Poisonous Snakes of the World
223:
134:
24:
22:
92:, Wright AA (1957).
113:U.S. Navy (1991).
25:
164:
163:
33:internasal scales
214:
185:
178:
171:
143:
136:
126:
111:
105:
87:
222:
221:
217:
216:
215:
213:
212:
211:
192:
191:
190:
189:
132:
130:
129:
112:
108:
88:
84:
79:
71:Scale (zoology)
62:
45:
17:
12:
11:
5:
220:
218:
210:
209:
204:
194:
193:
188:
187:
180:
173:
165:
162:
161:
144:
128:
127:
106:
81:
80:
78:
75:
74:
73:
68:
61:
58:
57:
56:
51:
44:
43:Related scales
41:
15:
13:
10:
9:
6:
4:
3:
2:
219:
208:
205:
203:
200:
199:
197:
186:
181:
179:
174:
172:
167:
166:
160:
158:
154:
151:article is a
150:
145:
142:
138:
133:
124:
123:0-486-26629-X
120:
116:
110:
107:
103:
102:0-8014-0463-0
99:
95:
91:
86:
83:
76:
72:
69:
67:
64:
63:
59:
55:
54:Rostral scale
52:
50:
47:
46:
42:
40:
38:
34:
30:
21:
202:Snake scales
157:expanding it
146:
131:
114:
109:
93:
85:
66:Snake scales
49:Nasal scales
32:
26:
207:Snake stubs
196:Categories
77:References
90:Wright AH
60:See also
37:rostral
121:
100:
31:, the
29:snakes
149:snake
147:This
153:stub
119:ISBN
98:ISBN
27:In
198::
39:.
184:e
177:t
170:v
159:.
125:.
104:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.