Fishes . Putnam. Ilnhoiidcd in a. layer of motlier-of-pearl. La Paz, Lower California. (Photograph by Capt. M. Castro.) with a rather large head, and the vent is at the throat. Numer-ous species of Fierasfer (Carapus) are found in the warm little fishes enter the cavities of sea-cucumbers (Holo-thurians) and other animals which offer shelter, being frequentlytaken from the pearl-oyster. In the Museum of Comparative The Blennies: Blenniidae 733 Zoology, according to Professor Putnam, is one valve of apearl-oyster in which a specimen of Fierasfer dubius is beauti-fully inclosed in a p
Fishes . Putnam. Ilnhoiidcd in a. layer of motlier-of-pearl. La Paz, Lower California. (Photograph by Capt. M. Castro.) with a rather large head, and the vent is at the throat. Numer-ous species of Fierasfer (Carapus) are found in the warm little fishes enter the cavities of sea-cucumbers (Holo-thurians) and other animals which offer shelter, being frequentlytaken from the pearl-oyster. In the Museum of Comparative The Blennies: Blenniidae 733 Zoology, according to Professor Putnam, is one valve of apearl-oyster in which a specimen of Fierasfer dubius is beauti-fully inclosed in a pearly covering deposited on it by theoyster. A photograph of a similar specimen is given species found in Holothurians are transparent in texture,with a bright pearly luster. Species living among lava rocks,as Jordamcus umbratilis of the south seas, are mottled this was written a specimen of this black species has beenobtained from a Holothurian in Hilo, Hawaii, by Mr. H. Fig. 645—Pearlfish, Fierasfer acvs (Linnieus), issuing from a of Italy. (After Emery.) The Brotulidae.—The Brotulidce constitute a large family offishes, resembling codfishes, but differing in the character ofthe hypercoracoid, as well as in the form of the tail. Theresemblance between the two groups is largely superficial. Wemay look upon the Brotulidce as degraded blennies, but theGadidcr have an earlier and different origin which has not yetbeen clearly made out. Most of the BroUilidcc live in deepwater and are without common name or economic species have been landlocked in cave streams in Cuba,where they have, like other caveflshes, lost their sight, a phenom-enon which richly deserves careful study, and which has beenrecently investigated by Dr. C. H. Eigenmann. These blind 734 The Blennies: Blenniidx Brotulids, called Pez Ciego in Cuba, are found in different cavesin the county of San Antonio, where they reach a length ofabout five inc
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