Loading...
Please wait, while we are loading the content...
Similar Documents
Crabs Of The Family Homolodromiidae (Crustacea, Decapoda, Brachyura), V-Dicranodromia Spinosa, A New Species From The Western Atlantic
| Content Provider | Semantic Scholar |
|---|---|
| Author | Martin, J. W. |
| Copyright Year | 1994 |
| Abstract | —A new species of the primitive homolodromiid crab genus Dicranodromia, D, spinosa, is described from among the specimens examined by M. J. Rathbun (1937) and previously considered to belong to the species D. ovata A. Milne Edwards. The new species is represented by 10 known specimens, one of which was formerly a paratype of D. ovata A. Milne Edwards, all collected in the western Atlantic. The species is easily distinguished from the other two American species, D. ovata and D. felderi, by the overall size, by the spination and setation of the carapace and pereiopods, and by the relative lengths of the terminal segments of pereiopod 5. At the time of publication of M. J. Rathbun's fourth and final volume on the crabs of America (Rathbun 1937), the genus Dicranodromia A. Milne Edwards, 1880, contained four species: D. ovata A. Milne Edwards, D. mahieuxii A. Milne Edwards, D. doederleini Ortmann, and D. baffini (Alcock & Anderson). Only one of these species was known from the Americas: Dicranodromia ovata A. Milne Edwards, 1880, the type species of the genus. The total number of specimens of D. ovata known to Rathbun, including the four specimens that comprised the type series (see Martin 1990), apparently was 14. In my description of a second American species of Dicranodromia from the western Atlantic, D. felderi, I noted that several lots among those labeled D. ovata in the collections of the National Museum of Natural History appear to contain unrecognized species (Martin 1990). One of those species, curiously one that is represented by most of the specimens examined and discussed by Rathbun, is described herein. Specimens upon which this report is based are in the holdings of the National Museum of Natural History, Smithsonian Institution, Washington, D.C. (USNM), and were previously labeled Dicranodromia ovata. Type material of D. ovata was borrowed from the Museum of Comparative Zoology, Harvard University (MCZ) (the holotype female, MCZ 6510, and two female paratypes, MCZ 6511 [herein reassigned to the new species] and MCZ 2745), and the Museum national d'Histoire naturelle, Paris (the third female paratype, MNHN MPB24324). Illustrations were made with the aid of a Wild M5APO dissecting stereoscope and drawing arm. The abbreviation CL indicates carapace length. Dicranodromia spinosa, new species |
| Starting Page | 451 |
| Ending Page | 457 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| Volume Number | 107 |
| Alternate Webpage(s) | https://decapoda.nhm.org/pdfs/11461/11461.pdf |
| Alternate Webpage(s) | https://ia600206.us.archive.org/26/items/biostor-81240/biostor-81240.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
