540 
ACTINOPTERTGII. 
pharyngeal bone triangular, and upper pharyngeals not fused 
together. Preoperculum serrated in young, smooth in adult. 
Vertebrae about 35 to 40 in number, nearly half being abdominal. 
Dorsal fin much extended, with more than 20 rays, of "which at 
least 13 are spinous; anal fin with 3 spines ; caudal fin rounded. 
Scales of moderate size, not serrated, extending over the opercular 
apparatus and cheek. 
Existing species range along the coasts of the temperate regions 
of Europe and Africa. The only fossil in the Collection referable to 
this genus is the following :— 
P. 5526. Imperfect lou er pharyngeal bone, rather large and 
massive, recorded by Woodward & Sherborn, Catal. Prit. 
Eoss. Vert. (1890), p. 108 ; Red Crag, Suffolk. 
Purchased, 1888. 
The following imperfectl}' known extinct species have been 
referred to this genus and to Creyiilahrus, but the systematic 
position of all except the first is very doubtful:— 
Lahrus agassizi, J. J. Heckel, Denkschr. k. Akad. Wiss., math.- 
naturw. Cl. vol. xi. pt. i. (1856), p 268, pi. xv. figs. 2-4 ; 
F. Bassani, Atti R. Accad. Sci. Napoli [2] vol. hi. (1889), 
no. 6, p. 47, pi. iv. fig. 2. Notceus agassizii, G. von 
Munster, Beitr. Petrefact. pt. vii. (1846), p. 27, pi. hi. 
fig. 2. Julis ayassizii or Jidis micensteri, R. Kner, 
Sitzungsb. k. Akad. Wiss., math.-naturw. Cl. vol. xlv. pt. i. 
(1862), p. 487.—Middle Miocene ; Margarethen, Vienna. 
Lower Miocene; Chiavon, Vicentin, N. Italy. [Imperfect 
fish ; Pal£eontological Museum, Munich.] 
Lahrus ihhetsoni, L. Agassiz, Poiss. Eoss. vol. v. pt. i. (1844), 
p. 116 (undescribed).—Miocene (Molasse) ; Switzerland. 
[Lower pharyngeal.] 
Lahrus jparvulus, J. J. Heckel, loc. cit. 1856, pv 271, pi. xv. fig. 5.— 
Middle Miocene; Margarethen, Vienna. [Imperfect 
small fish, probably not Labroid (R. Kner, Sitzungsb. k. 
Akad. Wiss., math.-naturw. Cl. voL xlv. pt. i. 1862, 
p. 487).] 
Lahrus p7'iscus, R. Lawley, Nuovi Studi Pesci, etc. Colline 
Toscane (1876), p. 71.—Lower Pliocene ; Spedaletto, 
Tuscany. [Upper pharyngeal.] 
Lahrus valenciennesi, L. Agassiz, Neues Jahrb. 1835, p. 293, 
and Poiss. Eoss. vol. v. pt. i. (1839-44), p. 116, pi. xxxix. 
fig. 2 (lettered Lahrus microdon). Lahrus mei'ula, G. S. 
