New species of Tubificoides Lastockin (Oligochaeta; Tubificidae) from the Pacific Northeast and the Arctic

1983 ◽  
Vol 61 (6) ◽  
pp. 1270-1283 ◽  
Author(s):  
H. R. Baker

Descriptions of six new species of marine or estuarine tubificid oligochaetes are given. Tubificoides kozloffi sp.nov., and Tubificoides brevicoleus sp.nov. are described from intertidal habitats of Washington and British Columbia. Tubificoides foliatus sp.nov., a species previously identified as belonging to the Tubificoides gabriellae complex, is described from California and British Columbia. Tubificoides cuspisetosus sp.nov., Tubificoides palacoleus sp.nov., and Tubificoides crenacoleus sp.nov. are described from the Arctic. A key to the species-groups of Tubificoides is given.

1983 ◽  
Vol 61 (4) ◽  
pp. 822-831 ◽  
Author(s):  
Kathryn A. Coates

Four species of the enchytraeid oligochaete genus Marionina from intertidal habitats are added to the British Columbia species list: Marionina klaskisharum sp. nov., M. nevisensis (Righi and Kanner, 1979), M. southerni Cernosvitov, 1937, and M. glandulifera (Jansson, 1960). Marionina nevisensis is asetate; M. klaskisharum has setal bundles ventrally in II to V, each represented by a single seta; M. glandulifera has only ventral, bisetate setal bundles; and M. southerni has lateral and ventral bisetate bundles in all segments except laterally in II. Marionina nevisensis is elevated from a subspecies of M. achaeta Lasserre, 1964 because of structural differences of their spermathecae and seminal vesicles. The ranges of M. charlottensis Coates, 1980 and M. nevisensis Coates, 1980 are extended, respectively, south to northern California and to include the entire British Columbia coastline.


1966 ◽  
Vol 23 (6) ◽  
pp. 805-811 ◽  
Author(s):  
Tai Soo Park

A new species Bradyidius saanichi from Saanich Inlet, Vancouver Island, British Columbia, Canada, is described and illustrated in detail. This species is closely related to B. pacificus (Brodsky, 1950) among the six previously known species in the genus, but can be readily distinguished from the latter by the strongly divergent rostral rami in addition to some other differences.


1994 ◽  
Vol 126 (3) ◽  
pp. 775-806 ◽  
Author(s):  
James E. O’Hara

AbstractNine species of Ceromya Robineau-Desvoidy (Diptera: Tachinidae: Siphonini) are recognized in the Nearctic region, including four new species, and one described species known previously only from the Palearctic region. The species are arranged into three species groups, with each group hypothesized to be monophyletic and each containing extralimital members. The three species groups and nine Nearctic species are as follows: the bicolor-group with C. bicolor (Meigen) (a Holarctic species newly recorded from the Nearctic region); the flaviseta-group with C. Ontario (Curran) and C. palloris (Coquillett); and the americana-group with C. americana (Townsend), C. balli sp.nov. (type-locality Masham Township, Quebec, Canada), C. elyii (Walton), C. flava sp.nov. (type-locality Masham Township, Quebec, Canada), C. oriens sp.nov. (type-locality Masham Township, Quebec, Canada), and C. occidentalis sp.nov. (type-locality Lakelse Lake, British Columbia, Canada). The bicolor-group has an Old World – Nearctic distribution, the flaviseta-group has an European–Nearctic distribution, and the americana-group has a Neotropical–Nearctic distribution. Adults of the nine Nearctic species of Ceromya are keyed and described, known hosts are listed (including corrections to published records), distributions are mapped, and taxonomically useful features are illustrated.


1989 ◽  
Vol 67 (3) ◽  
pp. 674-677 ◽  
Author(s):  
H. M. Reiswig ◽  
H. Kaiser

A new species of Porifera, Mycale banfieldense (Demospongiae, Poecilosclerida), is described from a semiobscure, intertidal cavern of the outer coast of Vancouver Island, British Columbia, Canada. This is the first species of Mycale from the Pacific basin known to possess micracanthoxea microscleres, and only the second such species worldwide. These microscleres, which average 4.2 × 0.2 μm, are the smallest sponge spicules discovered to date. They are formed individually within cytoplasmic vacuoles of anucleolate scleroblasts but each scleroblast contains 20 to 50 similar spicules.


1981 ◽  
Vol 59 (7) ◽  
pp. 1302-1311 ◽  
Author(s):  
Kathryn Coates

Three new marine, intertidal species of Lumbricillus are described from oligochaete collections taken in British Columbia. Lumbricillus tsimpseanis sp.nov., which was collected in upper intertidal habitats near Prince Rupert, is similar in morphology and habitat to L. helgolandicus Michaelsen emend. Nielsen and Christensen and L. kamtschatkanus Michaelsen, but is characterized by gland cells both around the spermathecal orifice and along its ectal duct. Specimens of Lumbricillus curtus sp.nov., a small species, were collected from three well-separated silty upper intertidal habitats. It is characterized by enlarged posterior lobes of the pharyngeal (=septal) glands of 6/7 and by spermathecae which unite with the oesophagus at one-half V. Lumbricillus rupertensis sp.nov., from intertidal silty sediments with much wood debris near Prince Rupert, is similar to L. lineatus with which it was found, but is characterized by a globular ampullar expansion lateral to the connection of the spermatheca with the oesophagus.


1970 ◽  
Vol 48 (4) ◽  
pp. 779-788 ◽  
Author(s):  
John V. Matthews Jr.

A radiometrically dated Pliocene fossil locality in western Alaska contains specimens representing two new species of insects: Micropeplus hoogendorni n. sp. and Micropeplus hopkinsi n. sp. (Coleoptera: Staphylinidae, Micropeplinae). Fossils of the extant Micropeplinae species Kalissus nitidus LeConte and Micropeplus tesserula Curtis occur with the fossils of the newly described species. Other insect fossils and plant fossils from the locality suggest that M. hoogendorni and M. hopkinsi lived in a coniferous forest somewhat similar to those in present-day British Columbia or Southeastern Alaska.The holotype and paratypes of Micropeplus hopkinsi provide morphological evidence for the evolutionary sequence of elylral puncture development in the genus Micropeplus. This and other information is used to construct a provisional phylogeny for the subfamily Micropeplinae. The probable derivation of the species groups of Micropeplus is discussed.


1969 ◽  
Vol 47 (3) ◽  
pp. 387-393 ◽  
Author(s):  
Michael J. Tynen

The following new species of littoral enchytraeid are described from the east coast of Vancouver Island, British Columbia—Enchytraeus cryptosetosus, Lumbricillus mirabilis, L. vancouverensis, L. georgiensis, L. qualicumensis, L. belli. These descriptions bring the number of North American Enchytraeus spp. to 6 and that of Lumbricillus spp. to 13. Existing evidence suggests that the enchytraeid fauna of the Pacific slope is quite distinct from that of the rest of North America and may have closer affinities with that of the northwest Pacific.


Zootaxa ◽  
2009 ◽  
Vol 2293 (1) ◽  
pp. 1-34 ◽  
Author(s):  
PAULO PASSOS ◽  
JONH JAIRO MUESES-CISNEROS ◽  
JOHN D. LYNCH ◽  
RONALDO FERNANDES

The taxonomic status of the Pacific lowland Atractus is revised on the basis of meristic, morphometric, colour pattern, and hemipenial characters. Geographical variation is reported for six Atractus species (A. boulengerii, A. clarki, A. iridescens, A. melas, A. multicinctus, and A. paucidens). Atractus boulengerii is rediscovered and redescribed from a specimen from the Colombian coast. The first voucher specimens are reported for A. melas. The current status of A. microrhynchus is maintained based on the discovery of new material referrable to that species. Three new species of Atractus are described from the Pacific lowland of Colombia: A. echidna sp. nov., A. medusa sp. nov., A. typhon sp. nov. Two new Atractus species groups (multicinctus and paucidens) are proposed based on external morphology, maxillary dentition, and hemipenial characters. A new key to Pacific lowland species of Atractus is provided.


1969 ◽  
Vol 47 (3) ◽  
pp. 395-403 ◽  
Author(s):  
Eve C. Southward

Five species of Pogonophora have been found in collections of benthos from depths of 200 to 2680 meters off the coast of British Columbia, Canada. They include two species already known from the Pacific, Polybrachia canadensis and Siboglinum pusillum; a new species of Lamellisabella, and a new species of Siboglinum. The fifth species is probably another new species of Siboglinum, but the specimens are not sufficiently complete for definite determination.


1970 ◽  
Vol 27 (11) ◽  
pp. 1943-1960 ◽  
Author(s):  
A. D. Sekerak

Sixty-six specimens of Sebastodes alutus, the Pacific ocean perch, collected from the coast of Oregon and British Columbia were examined for parasitic copepods. The six species identified are Chondracanthus pinguis Wilson, 1912, Chondracanthus triventricosus sp.nov., Clavella parva Wilson, 1912, Brachiella robusta (Wilson 1912) Kabata, 1970, Colobomatus kyphosus sp.nov., and Sarcotaces arcticus Collett 1874. Colobomatus kyphosus is the second species of the genus to be described from the eastern Pacific and Ch. triventricosus is the second chondracanthid to be found in nasal cavities. Sarcotaces arcticus is reported as a parasite of S. alutus for the first time. Details of the appendages of each new species are described and illustrated.


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