Commensal turbellarians from Bermuda holothurians

1980 ◽  
Vol 58 (10) ◽  
pp. 1741-1744 ◽  
Author(s):  
Ronald D. Snyder
Keyword(s):  
New Species ◽  
Life Cycle ◽  
New Host ◽  
New Information ◽  
New Host Records

An investigation of some of the echinoderm fauna of the Bermuda Islands for endocommensal rhabdocoel turbellarians was conducted during June 1973 and produced new information concerning the biology of these worms. In addition to the identification of new host records for Anoplodiera voluta and Wahlia macrostylifera, a possible new species in the genus Anoplodiera is partially described, and the hitherto unreported juvenile forms of all three of these are described. During the study, nematocysts were discovered in the gut and body walls of Wahlia macrostylifera, residing in the holothurian Stichopus badionotus, representing the first account of these structures in commensal turbellarians. This finding is discussed with respect to its possible significance in an elucidation of the life cycle of these animals.

A new species of Glyptapanteles (Hymenoptera: Braconidae: Microgastrinae), a larval parasitoid of Elymnias hypermnestra (Linnaeus) (Lepidoptera: Nymphalidae), along with some new host records of parasitoids from Peninsular India

Zootaxa ◽  
2012 ◽  
Vol 3227 (1) ◽  
pp. 54 ◽  
Author(s):  
ANKITA GUPTA ◽  
BLAISE PEREIRA
Keyword(s):  
New Species ◽  
New Host ◽  
Peninsular India ◽  
Larval Parasitoid ◽  
Hymenopteran Parasitoids ◽  
First Time ◽  
A New Species ◽  
New Host Records

A new species, Glyptapanteles hypermnestrae Gupta and Pereira, is described from Maharashtra, India, and comparedwith closely allied species. This new species was bred from parasitized larvae of Elymnias hypermnestra (Linnaeus) (Lep-idoptera: Nymphalidae). In addition to this, two hymenopteran parasitoids, Apanteles folia Nixon (Braconidae: Microgas-trinae) and Brachymeria indica (Krausse) (Chalcididae), are for first time reported parasitizing larvae of Arhopalaamantes (Hewitson) (Lepidoptera: Lycaenidae) and pupae of Pareronia valeria (Cramer) (Lepidoptera: Pieridae) respectively.

Helminths of the Hydromyini (Muridae: Hydromyinae) from Papua New Guinea with the description of a new species of Labiobulura (Nematoda: Ascaridida)

Zootaxa ◽  
2006 ◽  
Vol 1332 (1) ◽  
pp. 57 ◽  
Author(s):  
LESLEY R. SMALES
Keyword(s):  
New Species ◽  
Papua New Guinea ◽  
Buccal Cavity ◽  
New Guinea ◽  
Host Switching ◽  
New Host ◽  
Dietary Preferences ◽  
Host Taxon ◽  
A New Species ◽  
New Host Records

From a survey of helminths of the alimentary tracts of 26 hydromyins; 11 Leptomys, 1 Mayermys, 3 Neohydromys, 9 Paraleptomys, and 2 Parahydromys from Papua New Guinea an acanthocephalan, Porrorchis hydromuris; a cestode, Mathevotaenia sp.; the trematodes, Brachylaima sp., and a psilostome; and the nematodes, Heterakis fieldingi, Odilia mackerrasae, O, emanuelae, Protospirura kaindiensis, Rictularia mackerrasae, and Capillaria sp. s.l., as well as encapsulated larval ascaridids were found. All represent new host records. Labiobulura leptomyidis n. sp. (Subuluridae), differs from its congener in having longer spicules, no spines on the chordal lobes of the buccal cavity and it is described from Leptomys spp. Spirurida or Ascaridida were the dominant taxa in each helminth assemblage, with dietary preferences being a determinant. Either coevolution and or host switching, sometimes associated with migration between Australia and Papua New Guinea, also appear to have influenced the development of the helminth assemblage in each host taxon.

scholarly journals A clearly identifiable postlarva in the life cycle of a new species of Pliciloricus (Loricifera) from the deep sea of the Angola Basin

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 50-81 ◽  
Author(s):  
GUNNAR GAD
Keyword(s):  
New Species ◽  
Life Cycle ◽  
Deep Sea ◽  
Type I ◽  
Double Row ◽  
Body Regions ◽  
New Information ◽  
Two Phases ◽  
Distinguishing Features ◽  
A New Species

A newly discovered species of Pliciloricus from the deep sea of the Angola Basin (Namibia, Atlantic) seems to have two types of postlarvae in its life cycle. Type I is a simplified but clearly identifiable postlarval stage, the other type II consists only of a thin layer of cuticle as the remnant of a postlarva. Both types contain adults that have moulted from them. The simplified type I postlarva has a fully developed lorica with an ornamentation identical to that of the adult, but other body regions are reduced with only a few structures left. The discovery of this clearly identifiable postlarva is important, because it supports the conclusion that Pliciloricus-species originally moults from postlarval stages as well as other taxa of Loricifera. Furthermore, it could be concluded that the simple cuticle layer surrounding most adults found during their metamorphosis is the remnant of a postlarval stage. The life cycle of the new species seems to include two phases. After to the bisexual is a unisexual phase, represented by a simplified parthenogenetic adult stage which lacks most parts of the adult morphology. The adults of P. diva sp. n. differ from other species in having among others (1) a mouth cone with four strong cuticular bars plus eight primary oral ridges; (2) leaf-like clavoscalids which are very broad basally and narrow distally, and have more than 22 transverse cross walls; (3) a strongly sclerotized double-organ consisting of four rami; (4) large spinoscalids of second row shorter than clavoscalids, (5) short type B spinoscalids of fourth row with claw-tips and with a double row of five teeth as well as distally with a double row of minute denticles; (6) an anterior margin of the lorica with bicuspid protrusions and specific crescent-shaped ornamentations; (7) a midventral plica with five bar-like transversal strengthened ridges. Distinguishing features of the Higgins-larva are (1) short clavoscalids with broad second segments; (3) a collar with seven flosculi located in small pits; posterolateral setae being short but strong and pod-like. The study also revealed new information about the double-organ of the adult and the buccal structures of the Higgins-larva.

On Some Filarial Parasites of South American Primates, with a Description of Tetrapetalonema tamarinae n.sp. from the Peruvian Tamarin Marmoset, Tamarinus nigricollis (Spix, 1823)

1963 ◽  
Vol 37 (4) ◽  
pp. 261-286 ◽  
Author(s):  
Frederick L. Dunn ◽  
Frank L. Lambrecht
Keyword(s):  
New Species ◽  
Blood Film ◽  
South American ◽  
New Host ◽  
Ateles Paniscus ◽  
New Hosts ◽  
Saimiri Boliviensis ◽  
Saimiri Sciurea ◽  
A New Species ◽  
New Host Records

1. The results of a survey of 194 Peruvian and Colombian primates for filarial infections are presented. Nine genera and 14 species of marmosets and monkeys are represented in the survey. A blood film survey revealed microfilariae in 82, of 42% of the animals. Adult worms were recovered from 21 of 61 dissected animals. The 209 adult worms belong to four species: Dipetalonema gracile, Dipetalonema caudispina, Tetrapetalonema marmosetae, and Tetrapetalonema tamarinae, a new species.2. New host records for Dipetalonema gracile are: Tamarinus nigricollis, Cebus albifrons, and Saimiri boliviensis. Saimiri boliviensis is a new host for Dipetalonema caudispina. New hosts for Tetrapetalonema marmosetae are: Oedipomidas oedipus, Saimiri sciurea, S. boliviensis, and Ateles paniscus.3. The adult worms and microfilaria of a new species of filarial worm, Teirapetalonema tamarinae, are described from a Peruvian tamarin marmoset, Tamarinus nigricollis.

scholarly journals Helminth parasites of Thomomys bulbivorus (Richardson) (Rodentia: Geomyidae), with the description of a new species of Hymenolepis (Cestoda)

1985 ◽  
Vol 63 (6) ◽  
pp. 1463-1469 ◽  
Author(s):  
Scott Lyell Gardner
Keyword(s):  
New Species ◽  
Helminth Parasites ◽  
Pocket Gopher ◽  
Willamette Valley ◽  
Additional Species ◽  
New Host ◽  
Pocket Gophers ◽  
Significant Change ◽  
A New Species ◽  
New Host Records

A cestode, Hymenolepis tualatinensis n. sp., is described from the pocket gopher, Thomomys bulbivorus (Richardson) (Rodentia: Geomyidae), from the Willamette Valley in Oregon. Helminths of four additional species were found. Trichuris fossor Hall, 1916, Ransomus rodentorum Hall, 1916, Heligmosomoides thomomyos Gardner and Jasmer, 1983, and Hymenolepis horrida (von Linstow, 1901), of which all but H. thomomyos represent new host records. A significant change in prevalence of the whipworm T. fossor in the population of T. bulbivorus from spring through summer was noted. Significant differences in prevalence of infection of helminths in pocket gophers collected from two different localities in the Willamette Valley were observed.

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