430 
ACTINOPTEEYGII. 
1863. Belonostomus miinsteri, A. Wagner, Abb. k. bay. Akad. Wiss., 
matb.-pbys. Cl. vol. ix. p. 689. 
1863. Belonostomus speciosus, A. Wagner, ibid. p. 689. [Imperfect fish ; 
Palaeontological Museum, Munich.] 
1887. Belonostomus speciosus , O. Peis, Sitzungsb. k. bay. Akad. Wiss., 
math.-phys. Cl. vol. xvii. p. 159, pi. i. fig. 4. 
Type. Head and anterior part of trunk ; British Museum. 
A species of moderate size attaining a length of about 0*4. Head 
with opercular apparatus occupying about one-quarter of the total 
length ; maximum depth of trunk contained fifteen times in the 
total length. Cranium about five times as long as its maximum 
depth; jaws equal in length, the pointed anterior extremity of the 
dentary bones suturally united with a deep re-entering angle in the 
presymphysial hone; external ornament very finely rugose. Ver¬ 
tebrae in the form of robust constricted rings, longer than deep. 
Space between the origin of the pelvic fins and that of the anal 
fin about equal to the space between the latter and the caudal. 
Scales finely tuberculated, partly rugose; those of the lateral line 
not much exceeding in depth the series below. 
Form. 6f Log. Lower Kimmeridgian : Bavaria, and (?) Ain, France. 
P. 505, P. 3801. The type specimen described and figured by Agassiz, 
in counterpart; Lithographic Stone, Solenhofen. The 
suture at the proximal end of the presymphysial bone is 
well shown. Egerton Sf Enniskillen Colls. 
37798. Large specimen in counterpart, wanting the dorsal, anal, 
and pelvic fins, and part of the caudal fin, with much- 
disturbed squamation ; Solenhofen. Hdberlein Coll. 
37796, 37799, 37801. Three large specimens, variously imperfect, 
showing several of the principal characters of the species ; 
Solenhofen. Hdberlein Coll. 
P. 3802. A similar specimen, contorted, wanting all the fins except 
the basal half of the caudal; Solenhofen. 
Enniskillen Coll. 
37797. Imperfect vertebral column, with remains of the head and 
scattered scales ; Solenhofen. The suture between the pre¬ 
symphysial and dentary bones is shown; and in the caudal 
region the short neural and hsemal arches and spines are 
preserved. Hdberlein Coll. 
P. 4690. Head wanting rostrum, with trunk wanting caudal region, 
of the form ascribed to this species by Thiolliere, Poiss. 
Foss. Bugey, pt. ii. (1873), p. 24; Cirin, Ain, France. 
Purchased, 1884. 
