Loading is taking a long time
Jordan & Evermann 1864
Jordan [D. S.] & Evermann [B. W.]
Jordan & Evermann
This subfamily includes Makushok’s (1958 [ref. 2878]) subfamilies Alectriinae and Xiphisterinae as tribes. Stoddard (1985 [ref. 26646]) classified Makushok’s (1958 [ref. 2878]) Alectriinae as a tribe in Xiphisterinae. Shiogaki (1985 [ref. 5199]) provided new morphological data and a new key to the Alectriinae. In both tribes the anterior ribs are massive; 3-5 interorbital pores are present. Dorsal fin characterized by a pronounced gradition in which the first spine is noticeably shorter and weaker than the last. Dorsal fin with soft rays in the posterior portion in several of the Xiphisterini, with up to 43 soft rays in <b><i>Cebidichthys</i></b>, which is considered the most primitive member of the tribe. Pectoral fins small in all species, minute (less than eye diameter) in <b><i>Xiphister </i></b> . Pelvic fins absent or reduced. Gill openings not continued forward; gill membranes broadly joined but not attached to isthmus except in <b><i>Anoplarchus </i></b> ; branchiostegal rays 5 in Alectriini, 6 in Xiphisterini. Dermal crest present on head in some species, most pronounced in Alectriini. Vomerine and palatine teeth present in most Alectriini, absent in most Xiphisterini. Cheek scales absent. Body scales present in Xiphisterini, on posterior half of body only or absent in Alectriini. Lateral line with postoccipital branch in most species; short in Alectriini, well developed in Xiphisterini except absent in <b><i>Cebidichthys </i></b> . Sensory canals present on head, except reduced in <b><i>Pseudalectrias </i></b> ; cheek canals present only in <b><i>Phytichthys </i></b> and <b><i>Xiphister </i></b> ; lateral line complex, with multiple lines and ascending and descending branches, in Xiphisterini. Vertebrae 62-81. The Xiphisterinae has most of its species in the eastern North Pacific, with only <b><i>Dictyosoma </i></b> occurring in the western Pacific; and the Alectriini are mostly in the western North Pacific, with only <b><i>Anoplarchus </i></b> in the eastern Pacific.</i></b>
This site works best when viewed in Google Chrome or Mozilla Firefox.
Designed & Developed by Rebin Infotech