Heteropneustes

Heteropneustes
	Heteropneustes fossilis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Superfamily:	Siluroidea
Family:	Heteropneustidae; Hora, 1936
Genus:	Heteropneustes; J. P. Müller, 1840
Type species
	Silurus fossilis; Bloch, 1794
Synonyms
	Saccobranchus; Valenciennes, 1840; Clarisilurus; Fowler, 1937

Heteropneustes, the airsac catfishes, is a genus of catfishes native to Asia. This genus is the only one in its family.

Their bodies are elongated and compressed with greatly depressed heads. They have long air sac that serve as lungs that extends from the gill chamber. The dorsal fin is short and has no spine. The pectoral fins have an associated venom gland and as a result the fish is considered dangerous.[1] They are oviparous; distinct pairing is possible.

Species

There are currently five recognized species in this genus are:[2][3]

Heteropneustes fossilis (Bloch, 1794) (stinging catfish)
Heteropneustes kemratensis (Fowler, 1937)
Heteropneustes nani Hossain, Sarker, Sharifuzzaman & Chowdhury, 2013[3]
Heteropneustes longipectoralis Rema Devi & Raghunathan, 1999
Heteropneustes microps (Günther, 1864)

gollark: MPU6050.

gollark: The basic raw-value-reading bit, which I could easily implement myself in python, works fine, but some DMP code I had to copy from the arduino library (which is probably why it breaks horribly?) causes æææ.

gollark: ```MPU6050 3-axis acceleromter example programASAN:DEADLYSIGNAL===================================================================2032==ERROR: AddressSanitizer: SEGV on unknown address 0x00000013 (pc 0x0014255c bp 0x7ea10018 sp 0x7ea10000 T0) #0 0x14255b (/home/pi/mputest/a.out+0x14255b) #1 0xcdec3 (/home/pi/mputest/a.out+0xcdec3) #2 0x76c256bf (/lib/arm-linux-gnueabihf/libc.so.6+0x2c6bf)AddressSanitizer can not provide additional info.SUMMARY: AddressSanitizer: SEGV (/home/pi/mputest/a.out+0x14255b) ==2032==ABORTING```This is very unhelpful.

gollark: Now, *technically* I could implement all the filtering and sensor fusion algorithms and calibration myself in python, however no.

gollark: So, I want to read some values from an I2C device. Now, you might think "foolish gollark that's something like 50 lines of python at absolute most", and it is except to get anything but raw values I need to use some on-chip "digital motion processor" which is extremely poorly documented.

References

Nelson, J. S.: Fishes of the World, John Wiley & Sons, Inc., p , 2006 ISBN 0-471-25031-7
Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Heteropneustes in FishBase. October 2013 version.
Hossain, M.S., Sarker, S., Sharifuzzaman, S.M. & Chowdhury, S.R. (2013): New species of stinging catfish Heteropneustes nani (Siluriformes: Heteropneustidae) from Noakhali, Bangladesh. Vertebrate Zoology, 63 (3): 259–267.

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[Nelson-1] Nelson, J. S.: Fishes of the World, John Wiley & Sons, Inc., p , 2006 ISBN 0-471-25031-7

[2] Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Heteropneustes in FishBase. October 2013 version.

[Hossain2013-3] Hossain, M.S., Sarker, S., Sharifuzzaman, S.M. & Chowdhury, S.R. (2013): New species of stinging catfish Heteropneustes nani (Siluriformes: Heteropneustidae) from Noakhali, Bangladesh. Vertebrate Zoology, 63 (3): 259–267.