Author: H. J. Hansen
Publisher: Forgotten Books
Published: 2018-02-08
Total Pages: 130
ISBN-13: 9780656081332
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Excerpt from The Danish Ingolf-Expedition, Vol. 3: 2. Crustacea Malacostraca, (I.) Nevertheless, I am myself guilty here of publishing a faunistic list. It would, however, be meaningless to give new descriptions of the species (with figures) of all the northern-arctic Decapoda, most of which have been described several or even many times, and for example to describe and figure the Cumacea, Isopoda and Amphipoda which have been so excellently dealt with in Sars' standard work mentioned above. But wherever on going through my large material I have met with a note worthy difference between my specimens and the work noted by me as the chief publication regarding the species in question, I have displayed the differences discovered by notes and often likewise by figures, so that a possible error of determination may be controlled by a successor, who in one or other regard has better material or more critical ability. With this object in view I have marked with l the work or the two works for each species which contain the best description of the form; also, under remarks I have sometimes briefly mentioned one or several of the principal specific characteristics. I have thus done-what I could to give the users of this work the greatest possible control as regards my own determinations, and hope further that these measures of circumspection may be a good example to others who in future wish to publish faunistic catalogues of Crustacea. With regard to species which have been described several or many times it has seldom been my intention to refer to all the previous descriptions and figures in the synonymy list. I only give a greater or less selection which always contains the first description and the one or two best (marked as mentioned above). In the synonymy list no reference is ever given to mere lists of names, and reference is only made to a work if it contains either a description or a figure or at least remarks of importance for the recognition of the species. I may add, that I have always used the works cited under each species, except in the cases where these were not available and then I mention the source of my citation. It is very common to find that authors give citations of descriptions of a species and of localities, where these are only mentioned in the same way, so that one cannot see whether there is in the work cited only a name and some localities or likewise a description; in this way the synonymy list swells up to an unreasonable extent and at the same time becomes not nearly so reliable or so useful as a list much shorter but carefully chosen. Another and not very rare bad habit is that an author, in a synonymy list for example, cites a treatise be either does not know or has not looked at in the case in question, but has copied it from another's list; it happens that such slackness can be detected, when the author in his citation includes the written or printed error found. In the citation of his predecessor by a third person. Under occurrence and distribution I have generally given for each locality or small group of localities the author or the authors as the source of information but not mentioned the works; and except where the contrary is stated I have everywhere examined the source myself. It is only when I have studied specimens from the same coast that I omit frequently any reference to earlier notices; where therefore no author is named for a locality or for several localities mentioned immediately after one another, that means that our Museum owns the species in question from these localities. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
