December 7, 2004: Headlines: COS - Nepal: Biology: Catfish: Practical Fishkeeping: Nepal RPCV David Edds discovers new species of bagrid catfish

Peace Corps Online: Directory: Nepal: Peace Corps Nepal : The Peace Corps in Nepal: December 7, 2004: Headlines: COS - Nepal: Biology: Catfish: Practical Fishkeeping: Nepal RPCV David Edds discovers new species of bagrid catfish

By Admin1 (admin) ( - on Saturday, January 01, 2005 - 8:10 pm: Edit Post

Nepal RPCV David Edds discovers new species of bagrid catfish

Nepal RPCV David Edds discovers new species of bagrid catfish

Nepal RPCV David Edds discovers new species of bagrid catfish

New species - Batasio macronotus

Caption: The photo above is of a Batasio havmolleri, a species of Bagrid catfish found in Thailand, and is *not* the Batasio macronotus found in Nepal

A new species of bagrid catfish has been described from the waters of the Kosi River drainage in eastern Nepal.

Heok Hee Ng and David Edds described the new catfish as Batasio macronotus in the latest issue of the journal Ichthyological Exploration of Freshwaters.

The fish was discovered by David Edds of Emporia State University in Kansas during an ichthyological survey of Nepal, and was found to be a new fish when it was compared with other existing members of the Batasio genus.

Unlike most other Batasio species, with the notable exception of B. batasio, B. macronotus has a colour pattern of horizontal stripes rather than the usual vertical bands or blotches.

It's also got a shorter dorsal spine than batasio and the base of the adipose fin is slightly longer.

There are 10 species in the genus, including: B. batasio, B. tengana, B. affinis, B. dayi, B. merianensis, B. havmolleri, B. travancoria, B. tigrinus, B. elongatus and B. sharavatiensis, with an eleventh fish, B. pakistanicus, also tentatively considered a member.

For more details see the paper: Ng, HH and DR Edds (2004) - Batasio macronotus, a new species of bagrid catfish from Nepal (Teleostei: Bagridae). Ichthyological Exploration of Freshwaters, Vol. 15., No. 4. 295-300.

More at: PFK (Tue December 7, 2004, 9:10 am)

Batasio macronotus, a new species of bagrid catfish from Nepal

(Teleostei: Bagridae)

Heok Hee Ng* and David R. Edds**

Members of the bagrid genus Batasio are small, laterally compressed catfishes found in upper reaches of rivers throughout South and mainland Southeast Asia. They are diagnosed from other members of the Bagridae in possessing large sensory pores on the head, a narrow mental region, a pair of prominent posterior processes on the anterior part of the vomer, a transversely elongated, bar-like entopterygoid, and close contact of the metapterygoid with the quadrate (Mo, 1991). There are ten valid species of Batasio: B. batasio (Hamilton, 1822), B. tengana (Hamilton, 1822), B. affinis Blyth, 1860, B. dayi (Vinciguerra, 1890), B. merianensis, (Chaudhuri, 1913), B. havmolleri (Smith, 1931), B. travancoria Hora & Law, 1941, B. tigrinus Ng & Kottelat, 2001, B. elongatus Ng, 2004 and B. sharavatiensis Bhatt & Jayaram, 2004, with an eleventh species, B. pakistanicus Mirza & Jan, 1989, tentatively considered valid (Ng & Kottelat, 2001) but of questionable generic placement. During an ichthyological survey of Nepal, the second author obtained a species of Batasio that, on comparison with other known species, was found to be undescribed.

Material and methods

Measurements were made point-to-point with dial callipers and recorded to 0.1 mm. Ng & Kottelat (2001) are followed for all measurements and counts. Material examined in this study is deposited in the following institutions: CAS, California Academy of Sciences, San Francisco; KU, University of Kansas Natural History Museum,

When this story was posted in December 2004, this was on the front page of PCOL:

Changing of the Guard Date: December 15 2004 No: 330 Changing of the Guard
With Lloyd Pierson's departure, Marie Wheat has been named acting Chief of Staff and Chief of Operations responsible for the day-to-day management of the Peace Corps. Although Wheat is not an RPCV and has limited overseas experience, in her two years at the agency she has come to be respected as someone with good political skills who listens and delegates authority and we wish her the best in her new position.

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Story Source: Practical Fishkeeping

This story has been posted in the following forums: : Headlines; COS - Nepal; Biology; Catfish



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