Filogenia de los equinodermos. Los cordados invertebrados. Respuesta a los estímulos. Locomoción. Reproducción y desarrollo. Laboratorio de Sistemática y Ecología de Equinodermos, Instituto de Ciencias Hernández-Herrejón LA () Filogenia del género Ophioderma Müller and . de la composición faunistica de los anélidos poliquetos y equinodermos Morelia, México Hernández-Herrejón LA () Filogenia del género Ophioderma.

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Adoral shields are not covered by granules. Madreporite large, circular and distal within one oral shield.

Each jaw has between 16 – 17 oral papillae, the 2 apical papillae are longer and pointed, and the 2 most distal are largest and almost rounded. These 2 records constitute the first time that O. Each jaw holds a group of oral papillae, wider than long, and 3 to 5 teeth.

Filogenia de equinodermos species Ophiolepis utinomii Irimura,is very similar to the holotype of Ophioteichus multispinum, and is herein transferred to the genus Ophioteichus; this transfer expands the geographic range of the genus.


Ophiactis quinqueradia Ljungman,O. Ophioderma devaneyi and Ophioderma ensiferumnew brittlestar species from the western Atlantic Echinodermata: Analysis of flow variability in the Yucatan Channel.

Echinoderms in an anchialine cave in Mexico. Ophioderma ensiferum Hendler and Miller, Fig. Jaws bearing 16 to 19 oral papillae. Lacks bare scales at the base of the arms and lacks scales between the arm and distal genital slit.

Literature cited Abascal, A. Oral shields pentagonal, slightly wider than long length: Journal of Cave and Karst Studies Cinco registros nuevos de ofiuroideos Echinodermata: Taxonomia, filogenia e biogeografia de esponjas marinhas do Chile: Oral shields triangular with rounded angles, as wide as long. Circuito exterior, Ciudad Universitaria, Del. Two genital slits on each side of the arms. Ophioderma ensiferum Hendler and Miller, is a shallow water subtropical brittlestar 11 to 24 m depth previously recorded only in 2 different places belonging to the marine ecoregions of the Western Caribbean and the Greater Antilles, which are part of the Tropical Northwestern Atlantic province according to the bioregionalization of Spalding et al.

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The pigmentation of the arms of O. Clark, and diagnose the species using existing and new characters found by examining the type material.

Larval swimming and substrate fquinodermos in the brittle star Ophioderma brevispinum. Ophioderma ensiferum was found above a living coral structure of the genus Montastreain a night dive, around 9 pm.

filogenia de equinodermos pdf free

Holotype preserved in alcohol and dried: Olsen and Olsen, Fredensborg, Denmark. Disc covered with granules slightly separated each other. Arm spines thin, slightly flattened laterally, bearing a maximum of 7 arm spines and 2 tentacle scales.

Cahier de Biologie Marine Echinoderms of the Rhomboidal Cays, Belize: In Reproduction, genetics and distributions of marine organisms: The Boxwood Press, California. Financial support came from Project Conacy-Semarnat No.

filogenia de equinodermos pdf free – PDF Files

Vlaams Instituut voor de Zee. The specimen from Cenote Aerolito showed the same coloration pattern as the holotype Fig. Journal of Geophysical Research C12, doi: Allcock The Southern Ocean: Ophioteichus is currently composed of three species: Equinodefmos shields oval, longer than wide, covered by the same granules that cover the disc Fig.


A review of the existing literature indicates that Ophioderma is exclusively gonochoric, with each species exhibiting a single annual reproductive cycle that may result in a single or multiple spawning events Hendler, ; Hagman and Vize, Atoll Research Bulletin Caribbean Journal of Science We propose that the dispersion of the larvae was favored by the movement of equinodermow from the Caribbean Sea. This finding represents the first record of this ophiuroid on the continental shelf of Mexico, and also the first record of this species in an anchialine cave.

In life, brilliantly pigmented with deep-pink disc and yellow arms; tube foot with shaft pale reddish-orange and red tip.

Ophioderma ensiferum Hendler and Miller, Two tentacle scales covering a tentacular pore. Ventralmost arm spine thicker and longer than the dorsal, and reaches the base of the ventral spine on the adjacent arm segment. The habitat inside the anchialine cave where we found O. Lateral arm plates shaped like a half circle, there are flattened arm spines, separated and long, the ventral ones longer than the dorsal ones, and reach the tentacle scale on the adjacent segment.