| The genus Pseudoscopelus Lutken, 1892 is easily distinguished from the other Chiasmodontidae by the presence of well-defined rows of photophores. Until 2005, eight species were known. Pseudoscopelus scriptus was the first described by Lutken in 1892, then P. sagamianus by Tanaka in 1908, P. stellatus by Beebe in 1932 and P. altipinnis by Parr in 1933. Later in 1934, Fowler described three new species: P. microps, P. cephalus, and P. obtusifrons. These three species, known from only one specimen each, have not been recorded since. Lastly, an easily distinguishable species, P. scutatus, was discovered by Krefft in 1971. In a recent review, Prokoviev and Kukuev (2005, 2006) confirmed the validity of all species and described a new one P. aphos,... |
