C. Richard Robins

A SHORT ACCURATE METHOD FOR ESTIMATING THE VOLUME OF STREAM FLOW

Experiences of the authors have shown that different individuals estimating flow at a given locality under similar conditions often obtain very different results. Comparison of such estimates made by members of the same parties showed differences ranging from 20 to 125 cfs at one station and 25 to 80 cfs at another. Such large discrepancies were common. While some of these were rough estimates hurriedly taken, it is probable that they are typical of the estimates made by many field biologists. Estimates of stream flow are of value

New Genus and Species of Seven-Spined Goby (Gobiidae: Gobiosomini) from the Offing of the Amazon River, Brazil

Akko dionea, a new genus and species of gobiid fish, is described from the shelf waters of Brazil just northeast of the mouth of the Amazon River. It is a member of the Gobiosomini, an endemic American tribe with which it shares two synapomorphies: a 3-221110 dorsal pterygiophore formula and 11 precaudal vertebrae. Within this tribe, its relationships are obscured by a large number of autapomorphic features, some unknown in any other gobiids. The osteology of the head, pectoral and pelvic girdles, and the caudal region are described along with certain aspects of the cranial and girdle myology. The arrangement of sensory papillae is illustrated. The species lacks head pores. Parallelism in structures with other unrelated gobies are believed to reflect adaptations to life on a soft mud bottom. Alepidoeleotris tigris Herre is synonymized with Eleotrica cableae Gingburg, and Cayennia Savage is synonymized with Gobioides Lacep?de. T HE New World goby fauna is dominated by a single, large, endemic tribe, the Gobiosomini, a member of the subfamily Gobiinae (Pezold, 1993). The Gobiinae, containing about 100 genera worldwide, is represented in the Americas by 29 genera of which 26 are endemic. The Gobiosomini comprises 24 of these 26 endemic genera and represent some 40% of the total New World gobioid genera. Members of the Gobiosomini display a remarkable diversity in both form and habit and occupy habitats from fresh waters to shelf slopes at depths exceeding 500 meters. Here we report on a new and unusual genus of Gobiosomini from off the mouth of the Amazon River.

The Status of the Serranid Fish Liopropoma aberrans, with the Description of a New, Apparently Related Genus

BLEEKER, P. 1863. Atlas ichthyologique des Indes Orientales Neerlandaises 3:1-150. Frederic Muller, Amsterdam. BLYTH, E. 1861. Report on some fishes received chiefly from the Sitang River and its tributary streams, Tenasserim Provinces. J. Asiat. Soc. Bengal 29(2):138-174. HORA, S. L. 1941. Notes on Malayan fishes in the collection of the Raffles Museum, Singapore. Parts 2 and 3. Bull. Raffles Mus. No. 17, pp. 44-64. HUBBS, C. L. AND K. F. LAGLER. 1958. Fishes of the Great Lakes Region. Bull. Cranbrook Inst. Sci. No. 26, Rev. ed., 213 pp. SILAS, E. G. 1953. Classification, zoogeography and evolution of the fishes of the cyprinoid families Homalopteridae and Gastromyzonidae. Rec. Indian Mus. 50(2): 173-263. ZOOLOGY DIVISION, NATIONAL MUSEUM OF SINGAPORE, SINGAPORE 6.

Two New Cottid Fishes from the Fresh Waters of Eastern United States

JORDAN, DAVID STARR AND E. C. STARKS. 1896. [Description of Mugil thoburni.] In Jordan, David Starr and Barton Warren Evermann, The fishes of North and Middle America..., Part 1. Bull. U.S. Natl. Mus. (47):1-1240. JORDAN, DAVID STARR AND J. SWAIN. 1884. A review of the American species of marine Mugilidae. Proc. U.S. Natl. Mus. 7:261-75. MOHR, ERNA. 1927. Mugiliden-Studien. Zool. Jahrbucher (Abt. Syst., Okol. Geog. Tiere), 54:179-202, figs. MORROW, JAMES E. 1957. Shore and pelagic fishes from Peru, with new records and the description of a new species of Sphoeroides. Bull. Bingham Oceanogr. Coll. 16 (Art. 2):555, figs. 1-12. SEALE, ALVIN. 1940. Report on fishes from Allan Hancock Expeditions in the California Academy of Sciences. In Allan Hancock Expeditions, Vol. 9, No. 1. Los Angeles, Univ. of California Press. 40 p. 5 pls. SNODGRASS, ROBERT EVANS AND EDMUND HELLER. 1905. Papers from the Hopkins-Stanford Galapagos Expedition, 1898-1899. No. 17. Shore fishes of the Revillagigedo, Clipperton, Cocos d Galapagos Islands. Proc. Washington Acad. Sci. 6:333-427.

Studies on Fishes of the Family Ophidiidae-VII. The Pacific Species of Lepophidium'

LEPOPHIDIUM, perhaps the most easily recognized genus of the Ophidiidae, is confined to American waters. Most species are found in tropical latitudes if not in tropical water. Although study of the Atlantic species is incomplete, Pacific species are outnumbered two to one and probably several Atlantic species are undescribed. This perhaps reflects the greater area of continental shelf in the Atlantic for few species occur on bottoms deeper than 150 fathoms. This paper considers the five Pacific species of Lepophidium. Brotuloides emmelas (Gilbert) a probable derivative of Lepophidium was discussed by Robins (1961:2148; figs. 3-5). Specimens have been borrowed from or ex

A New Gobioid Fish from the Antilles and Comments on Ctenogobius fasciatus and C. curtisi

SCHICHE, O. E. 1920. Reflexbiologische Studien an Bodenfischen. I. Beobachtungen an Amiurus nebulosus Les. Zool. Jahrb. Allg. Zool. 38:49112. WEDELL, G., E. PALMER AND W. PALLIE. 1955. Nerve endings in mammalian skin. Biol. Rev. 30(2):159-95. WHITEAR, M. 1952. The innervation of the skin of teleost fishes. Quart. J. Micr. Sci. 93:289-305. WINN, H. E. AND J. E. BARDACH. 1959. Differential food selection by moray eels and a possible role of the mucous envelope of parrotfishes in reduction of predation. Ecology 49(2):296-8. WUNDERER, H. 1908. Ueber Terminal-Koerperchen der Anamnier. Arch. f. mikr. Anat. 71: 504-69.

A List of Common and Scientific Names of Fishes

The American Fisheries Society check list provides common and scientific names of all fishes in the U.S. and Canada and also supplies brief habitat remarks (i.e., marine, freshwater, marine but enters freshwater, etc.). URI http://hdl.handle.net/1969.3/20047 Collections Galveston Bay Bibliography GBIC Materials Available at Jack K. Williams Library DSpace software copyright

Macristiella perlucens, a new clupeiform fish from the Gulf of Mexico

Aunique 11/2-inch long fish swimming at the surface under a night light was dipnetted by Harvey R. Bullis, Jr. from the R/V OREGON in 1954, about 50 miles NE of Tampico, Mexico in the Gulf of Mexico. The generally transparent fish remained alive for about 20 min in a dish of seawater, and was photographed with 35 mm Kodachrome film under camera lights. It became opaque within about 3 min after death, was photographed again, and placed in 10% formalin (H. R. Bullis, pers. comm.). It was later drawn in lateral view, cleared with potassium hydroxide, stained with alizarin, and preserved in glycerine. Certain structures were illustrated from the cleared and