. Fishes. Fishes. The Blennies: Blenniidae 733 Zoology, according to Professor Putnam, is "one valve of a pearl-oyster in which a specimen of Fierasfer duhius is beauti- fully inclosed in a pearly covering deposited on it by the oyster." A photograph of a similar specimen is given above. The species found in Holothurians are transparent in texture, with a bright pearly luster. Species living among lava rocks, as Jordanicus umbratilis of the south seas, are mottled black. Since this was written a specimen of this black species has been obtained from a Holothurian in Hilo, Hawaii, by M

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. Fishes. Fishes. The Blennies: Blenniidae 733 Zoology, according to Professor Putnam, is "one valve of a pearl-oyster in which a specimen of Fierasfer duhius is beauti- fully inclosed in a pearly covering deposited on it by the oyster." A photograph of a similar specimen is given above. The species found in Holothurians are transparent in texture, with a bright pearly luster. Species living among lava rocks, as Jordanicus umbratilis of the south seas, are mottled black. Since this was written a specimen of this black species has been obtained from a Holothurian in Hilo, Hawaii, by Mr. H. W. Henshaw.. Fig. 645.—Pearlfish, Fierasfer acus (Linnseus), issuing from a Holothurian. Coast of Italy. (After Emery.) The Brotulidae.—The Brotulidce constitute a large family of fishes, resembling codfishes, but differing in the character of the hypercoracoid, as well as in the form of the tail. The resemblance between the two groups is largely superficial. We may look upon the Brotulida; as degraded blennies, but the GadidcB have an earlier and different origin which has not yet been clearly made out. Most of the BrotulidcB live in deep water and are without common name or economic relations. Two species have been landlocked in cave streams in Cuba, where they have, like other cavefishes, lost their sight, a phenom- enon which richly deserves careful study, and which has been recently investigated by Dr, C. H. Eigenmann. These blind. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Jordan, David Starr, 1851-1931. New York, H. Holt and Company