7829

• UCREFRP Catalog Number: 7829
• Author: McElroy, D. M. and M. E. Douglas
• Title: Patterns of Morphological Variation among Endangered Populations of
• USFW Year: 1995
• Copyright Material: YES

648
COPEIA, 1995, NO, 3
APPENDIX. ANATOMICAL LANDMARKS CHARACTERIZED FOR SPECIMENS OF Gala robusta Ai3D G. cypha. (X, Y)
coordinates of all anatomical landmarks (Type A) and five of the 12 helping points (Type H; 4, 10-11, 13-
14) were digitized directly from frozen videotape images using Morphosys; coordinates of the remaining
helping points (Type H; 26-32) were computed geometrically from positions of digitized landmarks using
Morphosys. Data were used to construct a modified box truss for each specimen (Douglas, 1993). Names and
acronyms for each landmark follow Douglas (1993), except where indicated.
Landmark Acronym Type Description
Ventral peduncle VPd A Posterioventral junction of caudal peduncle
with most anterior procurrent caudal-fin ray
Dorsal peduncle DPd A Posteriodorsal junction of caudal peduncle
with most anterior procurrent caudal-fin ray
Insertion of anal IA A Posteriormost junction of base of anal fin with
body at presumed midsagittal line
Vertical of IA vIA H Intersection of a line drawn tangent to IA and
perpendicular to long body axis with dorsal
edge of body at presumed midsagittal line
Origin of anal OA A Anteriormost point where anal fin contacts
body at presumed midsagittal line
Insertion of dorsal IDo A Posteriormost junction of base of dorsal fin
with body at presumed midsagittal line
Origin of pelvic Opt A Anteriormost junction of pelvic fin with body,
representing presumed junction of first pel-
vic-fin ray with pelvic girdle
Origin of dorsal ODo A Anteriormost point where dorsal fin contacts
body at presumed midsagittal line
Origin of pectoral OPe A Center of a circle of greatest curvature at
junction of pectoral-fin rays with pectoral
girdle, representing presumed junction of
first pectoral-fin ray with scapula
Vertical of pectoral vpe H Intersection of a line drawn tangent to OPe
and perpendicular to long body axis with
dorsal edge of body at presumed midsagittal
line
Descent of pectoral dPe H Intersection of a line drawn tangent to OPe
and perpendicular to long body axis with
ventral edge of body at presumed midsagit-
tal line
Pupil Pu A Center of eye
Descent of pupil dPu H Intersection of a line drawn tangent to Pu and
perpendicular to long body axis with ventral
edge of body at presumed midsagittal line
Vertical of pupil vpu H Intersection of a line drawn tangent to Pu and
perpendicular to long body axis with dorsal
edge of body at presumed midsagittal line
Mouth corner MC A Posterorventralmost point on upper lip, at its
apparent junction with lower lip
Snout Sn A Anteriormost point of upper lip at implied
symphysis of left and right premaxillae
Anterior eye margin AEye A Anteriormost point on orbit as aligned with
long body axis
Posterior eye margin PEye A Posteriormost point on orbit as aligned with
long body axis
Upper operculum UPOp A Anterodorsalmost tip of operculum at its junc-
tion with head
Nape Na A Posterodorsal end of head, at junction of
scaled and unscaled regions of skin
Tip of pectoral TPeb A Distal tip of first pectoral-fin ray
Tip of dorsal TDob A Distal tip of first dorsal-fin ray
Tip of pelvic TPlb A Distal tip of first pelvic-fin ray