388 MEMOIRS OF THE CARNEGIE MUSEUM 
the probable arrangement of these parts may be inferred from a comparison with 
the same structure in B. longirostris, an outline figure of which is given above (5a). 
The specific title proposed for this remarkable new form is bestowed in honor 
of Mr. Moorhead B. Holland of Pittsburgh, son of the Director of the Museum, 
and friend of the writer, who rendered efficient aid in the task of superintending the 
transfer of the Bayet Collection from Brussels to this country during the summer 
of 1903. 
Family: BLENNID®. 
Elongated fishes with stout caudal pedicle, due to an expanded hypural; 
snout not produced. Dorsal fin occupying nearly the whole of the back, often 
subdivided; anal fin also much extended; caudal fin rounded or tapering. 
Modern species are marine, living at the bottom near almost all coasts.. Most 
of them are carnivorous, but a few are herbivorous; some are viviparous (Clinus), 
others oviparous. The habits of Blennius are interesting, and have been admirably 
described by Guitel (Arch. Zool. Expérim., 1898, sér. 3, Vol. I, p. 325). The male 
makes a sort of nest and defends the brood. 
Genus PreryGocEPHALUS Agassiz. 
This extinct genus, known only from the Eocene, and erroneously identified 
with the existing Cristiceps by J. Miiller, is thus diagnosed by A. Smith Woodward: 
“Head short and orbit very large; mouth small, with conical teeth. Vertebree 
about 10 in the abdominal, 14 in the caudal region. Dorsal fin very deep, the fore- 
most large spine displaced forwards above the head, but the fin otherwise con- 
tinuous. Squamation well developed and continuous, each scale with a longitu- 
dinal keel, and the keels forming regular lines along the trunk.” 
54. Pterygocephalus paradoxus Agassiz. (Plate XCVI, fig. 5.) 
1796. Labrus malapterus G. 8. Volta, Ittiolit. Veronese, p. 228, pl. LV, fig. 3 
(errore). 
1818. Labrus malapterus, H. D. de Blainville, Nouv. Dict. d’Hist. Nat., Vol. 
DOLOVANA jon BiDIe: 
1835. Pterygocephalus paradozus L. Agassiz, Neues Jahrb., p. 295 (name only). 
1839. Pterygocephalus paradoxus LL. Agassiz, Poiss. Foss., Vol. IV, p. 191, pl. 
2 OOFGNL, teas 55 (6 
1876. Cristiceps paradoxus, F. Bassani, Atti Soc. Veneto-Trent. Sci. Nat., Vol. 
III, p. 178. 
1901. Pterygocephalus paradoxus, A. S. Woodward, Brit. Mus. Cat. Fossil Fishes, 
pt. IV, p. 595. 
