Species of Lensia (Cnidaria: Hydrozoa: Siphonophorae) from southeastern Brazilian waters

Abstract

ABSTRACT. The siphonophores of the Brazilian coast are poorly studied, despite their abundance and ecological importance.Lensia is the most diverse genus within Siphonophora, with twenty-six valid species. A total of twenty species of Lensia are recorded for South American marine waters. This study presents morphological descriptions and an identification key to the species of Lensia that were collected in two oceanographic campaigns throughout the southeastern Brazilian coast. A total of sixty-one specimens were photographed, described, schematized and measured, and fifteen species of Lensia were identified.

Novel attempt at discrimination of a bullet-shaped siphonophore (Family Diphyidae) using matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-ToF MS)

“…Siphonophore specimens were sorted from 99% ethanol samples using Live Insect Forceps (26029-10, Fine Science Tools Inc., Foster City, CA, USA) under a stereomicroscope (Olympus SZX7, Tokyo, Japan). We identified specimens using descriptions, illustrations, and terminology from the literature 2 , 26 – 29 . For morphological records, digital photographs of specimens were produced at various focal points using a digital camera (Olympus PEN Lite E-PL3, Tokyo, Japan) connected to the stereomicroscope with side lights on the dark field.…”

Eight New Records of Siphonophores (Cnidaria: Hydrozoa) in Korean Waters

“…Our specimen was about 5 mm in length. Nishiyama [14] mentioned that the hydroecium is below the ostial level, but in our specimens, the hydroecium started at the ostial level and angled obliquely to the rear. Finally, the apex of the hydroecium was above the ostial level.…”

“…Siphonophore specimens were observed and identified under a stereomicroscope using descriptions, illustrations, and terminology drawn from the literature [9][10][11][12]14]. Photographs of specimens were collected at various focal points using a digital camera (Olympus PEN Lite E-PL3, Tokyo, Japan) connected to the stereomicroscope with sidelights on the dark field.…”

“…The distribution is as follows: Pacific ( [56,57]; Japan; Hawaii; California [33]; South China Sea [34]); Atlantic ( [35,56,57]; British; Celtic Sea [11]; Brazil; Santa Catarina [14]; Benguela Current [41]), Mediterranean [11,33,36], and Indian ( [56,57]; East African coast [10]). It mainly lives in warm and shallow tropical water [14].…”

Estructura poblacional del zooplancton gelatinoso en el mar ecuatoriano

“…Adicionalmente, Lensia grimaldii, Bargmannia elongata y Rosacea cymbiformis se encontraron durante la época lluviosa y de transición con temperaturas entre 23.2 y 26.2°C; lo que podría significar que esta especie es indicadora de los meses cálidos. L. grimaldii inicialmente fue descrita para América del Sur, en el Océano Atlántico (Alvariño, 1971;Da Silveira y Morandini, 2011;Leloup, 1934;Migotto et al, 2002;Nishiyama et al, 2016;Pugh, 1999 a y b); mientras que, B. elongata fue descrita en las costas de Baja California a temperaturas de 8°C. De igual manera, R. cymbiformis fue descrita para el Océano Atlántico (Alvariño, 1971) y para las costas de Baja California (Herrera, 2000).…”