ALBTJI.TDJE. 
63 
remains of the anterior end of the parasphenoid (pas.) 
exhibit the sockets for the characteristic tritoral teeth ; 
the vomer (v.) anteriorly hears a small transversely ex- 
tended patch of comparatively minute teeth, of which 
only the bases for attachment are preserved. In front, 
the vomer joins the ethmoid (eth.) in a dentate suture. 
Purchased, 1855. 
38827. Portion of parasphenoid dentition, partly figured in Geol. 
Mag. [3] vol. viii. (1891), pi. iii. fig. 5 ; Sheppey. 
Bowerbanlc Coll. 
36167. Another fragment showing parasphenoid teeth ; Sheppey. 
Cowderoy Bequest. 
P. 5924. Eight detached teeth similar to those of the parasphenoid 
of this species, two figured in Geol. Mag. [3] vol. viii. 
pi. iii. figs. 3, 4 ; Bruxellian, Woluwe St. Lambert, 
Brussels. Presented by M. Houzeau de Lehaie , 1889. 
Genus CHANOIDES, novum.' 
Irunk laterally compressed. Mouth terminal, with a few stout 
conical teeth of uncertain position ; no teeth on parasphenoid. 
Probably about 4 brancliiostegal rays. Vertebra! about 45 in 
number, half being caudal ; ribs stout. Pelvic fins opposed to the 
dorsal, which is short-based but much larger than the anal ; caudal 
fin deeply forked. Scales cycloid, not pectinated. 
Chanoides macropoma (Agassiz). 
[Plate YI. fig. 3.] 
1796. Clupea thrissa, G. S. Volta, Ittiolit. Veronese, p. cx, pi. xxv. 
fig. 1 (err ore). 
1796. Clupea cyprinoides, G. S. Volta, ibid. p. cxii, pi. xxv. fig. 2 
(err ore). 
1796. Sal mo mareena, G. S. Volta, ibid. p. exevi, pi. xlviii. fig. 2 (errore). 
1796. Clupea sinensis, G. S. Volta, ibid. p. cclxxv, pi. lxv. fig. 4 (errore). 
1818. Clupea murasnoides, II. 1). de Blainville, Nouv. Diet, d’llist. Nat. 
vol. xxvii. p 343. 
1818. Clupea thrissoides, II. D. de Blainville, ibid. p. 343. 
1834. Clupea macropoma, L. Agassiz, Verhandl. Ges. vaterland. Mus. 
Bokmen, p. 66 (name only). 
1835. Clupea macropoma, L. Agassiz, Neues Jalirb. p. 292. 
For the determination of the affinities of this genus the writer is indebted 
Mr. Gt. A. Boulenger. 
