An Additional New Species of Turbo (Marmarostoma) (Gastropoda: Turbinidae) from the Middle Miocene of the Izu Peninsula, Central Japan

2021 ◽  
Vol 25 (4) ◽  
Author(s):  
Susumu Tomida ◽  
Hayato Sano ◽  
Tomoki Kase
Zootaxa ◽  
2009 ◽  
Vol 2081 (1) ◽  
pp. 46-56 ◽  
Author(s):  
EIJIROH NISHI ◽  
TETSUYA KATO

A new species, Longibrachium arariensis, is described from shallow sandy bottoms, at the western side of Izu Peninsula, Shizuoka Prefecture, Pacific side of central Honshu, Japan. Longibrachium arariensis most closely resembles the Australian L. longipes Paxton, 1986 and European L. falcigerum Paxton and Gillet, 2004 in having a combination of large and small hooks in its prolonged parapodia. The new species can be distinguished from these two species by having shorter antennae and recurved hooks with differently arranged spines. This is the first record of the genus from Japan. We are reporting a unique collecting method of this large onuphid worm using hook and line and illustrating with underwater photographs the feeding behavior of the new species.


2017 ◽  
Vol 73 (3-4) ◽  
pp. 292-299
Author(s):  
Mitsuharu Oshima ◽  
Yukimitsu Tomida ◽  
Takamichi Orihara

Abstract A nearly complete dentary with preserved i2, p3 and m1 of a relatively large soricomorph from the Dota locality, Kani Basin, Early Miocene (ca. 18.5 Ma), Nakamura Formation of the Mizunami Group in central Japan, is described as a new species of Plesiosorex. It represents the first record of the genus in East Asia. Plesiosorex fejfari sp. nov. has a slender dentary, posteriorly elongated angular and condyloid processes, p3 with two roots, and m1 without hypoconulid or cingulid. Cladistic analysis of Butselia gracilis and seven species of Plesiosorex shows that Butselia is basally positioned with respect to Plesiosorex, and it seems likely that Plesiosorex originated in Europe at the beginning of the Miocene and expanded its distribution to East Asia and North America during the Early Miocene. Two Middle Miocene North American species are more closely related to each other than to European species of the same age.


Zootaxa ◽  
2021 ◽  
Vol 4966 (3) ◽  
pp. 349-358
Author(s):  
TOMOYUKI KOMAI

A new species of the chirostylid squat lobster genus Uroptychodes Baba, 2004, U. fuscilineatus, is described and illustrated on the basis of a single ovigerous female from the Uraga Channel, central Japan, at depth of 250 m. The new species appears most similar to U. spinimarginatus (Henderson, 1885) and U. yapensis Dong, Gan & Li, 2021 among the 13 known congeners, but is notable in the pereopod 2 not being definitely more slender than the pereopods 3 and 4 and the remarkably spinose pereopods 1–4. A possible association of the new species with crinoid is suggested. An updated identification key to species of Uroptychodes is presented. 


2011 ◽  
Vol 10 (7) ◽  
pp. 567-576 ◽  
Author(s):  
Cheyenn Rotgers ◽  
David M. Alba ◽  
Josep M. Robles ◽  
Isaac Casanovas-Vilar ◽  
Jordi Galindo ◽  
...  

Zootaxa ◽  
2009 ◽  
Vol 2021 (1) ◽  
pp. 57-65 ◽  
Author(s):  
JOHN S. BUCKERIDGE

A new deep-sea stalked barnacle, Ashinkailepas kermadecensis sp. nov. has been recovered from a cold-water seep at depths of 1165 metres in the vicinity of the Kermadec Ridge to the northeast of the North Island, New Zealand. There are now two species of Ashinkailepas—the other, Ashinkailepas seepiophila Yamaguchi, Newman & Hashimoto, 2004, occurs in deep, cold seeps off central Japan. As there are two species within Ashinkailepas, formal diagnoses are provided for both taxa.


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