PALiEOXISCTDiE. 
455 
(v.) Tynet Burn, Banffshire. 
35777. Much crushed small fish, about 0*175 in length, with well- 
preserved caudal lobe and fin. Purchased , 1860. 
35984. Small contorted fish, with displaced head and opercular 
bones. The left maxilla exhibits the coarse, horizontal 
striation of its expanded portion. Purchased, 1861. 
36060-61. Another small fish, in counterpart, wanting the caudal 
fin. Purchased , 1861, 
39181. Slightly larger specimen, wanting the caudal fin. The inner 
aspect of the left clavicle and the characters of the pectoral 
fins are well shown; and immediately behind the upper 
part of the clavicle there are indications of irregularly 
enlarged scales. Boiverbank Coll. 
37384. Much crushed fish, about 0*3 in length, showing part of the 
cranial roof with the pair of longitudinal sensory canals. 
The operculum and suboperculum of one side are displaced 
behind the pectoral arch, the operculum being very narrow 
and deep and marked by oblique, backwardly and down¬ 
wardly directed striations. Purchased , 1863. 
41310. Tine specimen, distorted on the ventral aspect of the head 
and abdominal region. The cranial roof exhibits the pair 
of longitudinal sensory canals, as noted by Traquair, loc. 
cit. (1875), p. 236; and there are remains of the large 
cheek-plate above the maxilla. The operculum is very 
deep and narrow, and apparently ornamented with 
striations or fine rugae obliquely directed backwards and 
downwards; and the suboperculum seems to be broader 
than deep. Immediately behind the pectoral arch there 
are four enlarged series of scales, gradually decreasing to 
the normal size; and the change of the squamation upon 
the upper caudal lobe is obvious. The elongation of the 
anal fin described in No. 21547 is again conspicuous ; and 
the caudal fin is complete, showing the slight excavation 
of the posterior border and the inequality of the lobes. 
Purchased, 1869. 
P. 342, P. 1370 b. Two specimens, about 0*25 and 0*28 in length, 
the second very imperfectly preserved. Egerton Coll. 
P. 4345. Somewhat distorted small fish, displaying the pectoral, 
anal, and caudal fins, and the double fulcra of the upper- 
caudal lobe. Enniskillen Coll . 
