scholarly journals Five new species and one new genus of recent miliolid foraminifera from Raja Ampat (West Papua, Indonesia)

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2157
Author(s):  
Meena Förderer ◽  
Martin R. Langer

Raja Ampat is an archipelago of about 1,500 small islands located northwest off the Bird’s Head Peninsula of Indonesia’s West Papua province. It is part of the Coral Triangle, a region recognized as the “epicenter” of tropical marine biodiversity. In the course of a large-scale survey on shallow benthic foraminifera we have discovered one new genus and five new species of recent miliolid benthic foraminifera from the highly diverse reefal and nearshore environments. The new fischerinid genusDentoplanispirinellais characterized by its planispiral coiling and by the presence of a simple tooth, that differentiate it fromPlanispirinellaWiesner. It is represented in our sample material by the new speciesDentoplanispirinella occulta. The other four species described herein areMiliolinella moia, Miliolinella undina, Triloculina kaweaandSiphonaperta hallocki.All new species are comparatively rare and occur sporadically in the sample material. Detailed morphological descriptions, scanning electron microscopy pictures of complete and dissected specimens as well as micro-computed tomography images are provided.

Zootaxa ◽  
2018 ◽  
Vol 4486 (3) ◽  
pp. 236
Author(s):  
MAX KIECKBUSCH ◽  
FELIX MADER ◽  
HINRICH KAISER ◽  
SVEN MECKE

 We describe a new species of snake of the genus Cylindrophis Wagler, 1828 from Boano Island, northern Maluku         Province, Indonesia. Cylindrophis osheai sp. nov. differs from all congeners by a combination of the following eidonomic characters: (1) 19 dorsal scale rows at midbody; (2) 224−226 ventral scales; (3) 8−9 subcaudal scales; (4) 25−28 dark ventral blotches, aligned to form a broad, wavy stripe along most of the body; (5) a dark ventral pattern that is completely separated from the dark dorsal coloration; (6) an almost completely dark ventral surface on the tail; (7) a dark bar running from the eye through the 3rd and 4th supralabials to the mouth; and (8) a dark, double-diamond-shaped ventral blotch in the area immediately posterior to the genials. Eidonomic species separation from other Cylindrophis species is supported by differences in cranial osteology, as elucidated by micro-computed tomography images. Diagnostic features of the cranium include (1) well-developed postorbitofrontals that project laterally beyond the maxilla in dorsal view, creating a characteristic, horn-like appearance; (2) a broad parietal with a bulbous middle section; (3) 10–12 maxillary teeth; (4) nine        palatine teeth; (5) 7–9 teeth on the pterygoid; and (6) 11–13 teeth on the dentary. We also provide notes on the taxonomic history of Cylindrophis melanotus Wagler, 1828 and an identification key to the Moluccan species of the genus. 


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2767
Author(s):  
Claudia Koch ◽  
Pablo J. Venegas

A new colubrid species of the genusTantillafrom the dry forest of the northern Peruvian Andes is described on the basis of two specimens, which exhibit a conspicuous sexual dimorphism.Tantilla tjiasmantoisp. nov. represents the third species of the genus in Peru. The new species is easily distinguished from its congeners by the combination of scalation characteristics and the unusual transversely-banded color pattern on the dorsum. A detailed description of the skull morphology of the new species is given based on micro-computed tomography images. The habitat of this new species is gravely threatened due to human interventions. Conservation efforts are urgently needed in the inter-Andean valley of the Maranon River.


1993 ◽  
Vol 67 (5) ◽  
pp. 902-905
Author(s):  
Anil K. Gupta ◽  
Barun K. Sen Gupta

Two new species of benthic foraminifera, Heronallenella boltovskoyi and Planulinoides srinivasani, are present at four Deep Sea Drilling Project (DSDP) sites in the tropical Indian Ocean (Table 1 and Figure 1). Both species are rare, each constituting less than 1 percent of the assemblage (> 149 μm size fraction) in which it occurs. The former, belonging to a new genus, occurs in Pliocene to Holocene sediments of DSDP sites 219, 237, 238, and 253, whereas the latter is present in the late Pleistocene of sites 237 and 238. The stratigraphic placement of the samples is after Srinivasan and Singh (1989) for site 219 and after Gupta (1987) for sites 237, 238, and 253. The descriptions of the new taxa are given below; the suprageneric classification is taken from Loeblich and Tappan (1987).


2018 ◽  
Vol 93 (1) ◽  
pp. 25-36
Author(s):  
Susana E. Damborenea

AbstractThe new endemic genus Neuquemya, from Pliensbachian deposits in west-central Argentina, is here described and tentatively referred to the Cuspidariidae on account of its shell characters. The new species Neuquemya leanzaorum has a thin, inflated shell, rounded anteriorly and rostrate posteriorly, with a narrow posterodorsal gape and opisthogyrous umbones. The hinge region bears small cardinal tubercles. The shell is ornamented by commarginal (anterior) and radial (posterior) sculpture, whereas the rostrum is smooth. The general and detailed characters of the shell are thus very similar to those of living cuspidariids. Cuspidariids are extremely specialized bivalves with special features related to their carnivorous habit. Their fossil record is scarce, and their phylogeny is poorly understood. Because a few key shell characters and all soft body features of the new genus are unavailable, the alternative possibility that his taxon could be a remarkable example of a homoeomorphic shell cannot be dismissed. If actually a cuspidariid, Neuquemya n. gen. becomes the oldest known member of the family ca. 100 Myr older than the Late Cretaceous records unequivocally accepted and supports the argument that the origin of the group is much older than its known fossil record. The possible relationships of the new genus with other poorly known Mesozoic genera are discussed. Although septibranchs in general and cuspidariids in particular are now conspicuous elements of deep-sea faunas, this new genus inhabited nearshore environments of the Neuquén Basin.UUID: http://zoobank.org/8adbd45b-c9c6-4f57-bcfc-c13e5f9182eb


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