A NEW SPECIES OF AMPELISCA (CRUSTACEA: AMPHIPODA) FROM EASTERN NORTH AMERICA, WITH NOTES ON OTHER SPECIES OF THE GENUS

1963 ◽  
Vol 41 (6) ◽  
pp. 971-989 ◽  
Author(s):  
Eric L. Mills

Ampelisca vadorum is described from eastern North American coastal waters. It has been confused since 1903 with the European Ampelsca spinipes Boeck, but differs considerably in morphology and ecology. A. spinipes is redescribed and figured. A deep-water record of A. spinipes from Cabot Strait refers to A. spinimana Chevreux. "Intersexes" in A. vadorum are really subadult males. Two generations per year occur north of Cape Hatteras. A small undescribed sibling species occurs in the same areas. Ten other western Atlantic Ampelisca species are discussed briefly, and a key is given to all species of the area.

1994 ◽  
Vol 68 (3) ◽  
pp. 451-460 ◽  
Author(s):  
Patrick R. Racheboeuf ◽  
Paul Copper ◽  
Fernando Alvarez

Cryptonella? cailliaudi Barrois, 1889, from the Lower Devonian of the Armorican Massif, is tentatively assigned to the athyridid brachiopod genus Planalvus Carter, thus far known only from the Lower Carboniferous of eastern North America. In addition, a new species, Planalvus rufus, is described from the Bois-Roux Formation (Pragian) of Brittany, France. These French species are small brachiopods with complex spiralial and jugal structures, which permit assignment to the order Athyridida.


Zootaxa ◽  
2018 ◽  
Vol 4375 (3) ◽  
pp. 409
Author(s):  
PAUL E. MAREK ◽  
JACKSON C. MEANS ◽  
DEREK A. HENNEN

Millipedes of the genus Apheloria Chamberlin, 1921 occur in temperate broadleaf forests throughout eastern North America and west of the Mississippi River in the Ozark and Ouachita Mountains. Chemically defended with toxins made up of cyanide and benzaldehyde, the genus is part of a community of xystodesmid millipedes that compose several Müllerian mimicry rings in the Appalachian Mountains. We describe a model species of these mimicry rings, Apheloria polychroma n. sp., one of the most variable in coloration of all species of Diplopoda with more than six color morphs, each associated with a separate mimicry ring.


Zootaxa ◽  
2018 ◽  
Vol 4403 (3) ◽  
pp. 540 ◽  
Author(s):  
GABRIEL E. RAMOS-TAFUR

A new species of deep water alpheid shrimp, Alpheus luiszapatai sp. nov., from Arusí, Chocó, Pacific coast of Colombia is described. The single female known was collected between the discarded bycatch of deep water shrimp trawls dedicated to the commercial fisheries of the “coliflor” shrimp Solenocera spp. This new species is placed putatively in the Alpheus brevirostris (Olivier, 1811) species group, and share some external morphological characters with Alpheus hephaestus Bracken-Grissom & Felder, 2014. It can be differentiated by the shape and ornamentation of major and minor chelipeds, the propodi and dactyli of third to fifth pereopods, the diaresis of uropodal exopod, the length of the rostral carina, color in life and bathymetric distribution. Additional comparison with another congeners pertaining to this species group complex from the eastern Pacific, western Atlantic and other oceanographic regions is discussed. A key for Alpheus brevirostris species group from the eastern Pacific is presented. 


1978 ◽  
Vol 110 (4) ◽  
pp. 435-441 ◽  
Author(s):  
J. M. Campbell

AbstractHymenochara, a new genus of Alleculidae, is described based onMycetochara rufipes(J. E. LeConte) from eastern North America andHymenochara arizonensisnew species, from Arizona.


Zootaxa ◽  
2011 ◽  
Vol 3086 (1) ◽  
pp. 57 ◽  
Author(s):  
MARCOS TAVARES ◽  
ALLYSSON P. PINHEIRO

A new species of the deep-water crab genus Chaceon Manning & Holthuis, 1989 (Geryonidae Colosi, 1923), is described from southwestern Atlantic. It is the ninth species of the genus known from the western Atlantic. It is most closely related to C. eldorado Manning & Holthuis, 1989, C. notialis Manning & Holthuis, 1989, and C. ramosae Manning, Tavares & Albuquerque, 1989, from which it can be readily differentiated in having the dactyli of P2-P5 laterally compressed, instead of being dorsoventrally depressed. A key to the western Atlantic species of Chaceon is provided.


1999 ◽  
Vol 30 (3) ◽  
pp. 281-298 ◽  
Author(s):  
Veli Vikberg ◽  
Alexey G. Zinovjev

AbstractEupontania Zinovjev, 1985, originally described as a subgenus of Pontania, is treated as a distinct genus of the subtribe Euurina Vikberg, which consists of the genera Euura Newman, Eupontania Zinovjev (stat. n.), Pontania A. Costa and Phyllocolpa Benson. Separate keys are given to distinguish these genera and the species-groups of Pontania and Phyllocolpa, and for 11 species of the Pontania crassispinu-group. A new species, Pontania rotundidentata sp. n. is described from eastern North America. The lectotypes are designated for P. crassispina (Thomson) and P. joergenseni Enslin. Pontania devincta MacGillivray (syn. n.) is treated as a synonym of P. populi Marlatt.


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