Tryssogobius sarah
Among the countless exquisite little gobys that live in aquariums, there are some genera that are full of mystery to people, such as the delicate goby genus /Tryssogobius. The genus currently contains 7 delicate and delicate members, and there may be more to be discovered, but just as popular they are in trade, even the most experienced divers may not be able to spot them all too niche!
The habitat is a seabed full of gravel and silt, photographed by Sunday Japan.
Morphologically, Tryssogobius is easily discernible: they are about 2 inches tall, their body is milky white, and all members have two dorsal fins, the first of which is mostly sickle-shaped. Although there are such distinctive features [for other gobies], in the wild it is also difficult to pin them down to the species of all members who look largely and closely together, with milky white bodies, blue and yellow lines. Scientists are also suffering from distinguishing them, but have come up with some characteristics that can distinguish them. This article may give you some guidance on how to distinguish them.
A group of T. Sarash operates in deep water at 130ft. Photography by Kazkian.
Fairy gobys are not strictly coral reef fish, in fact they prefer seabeds full of gravel and silt and steep slopes at the edges of coral reefs. The cluttered bottom environment here provides plenty of shelter for them and other small creatures. The genus Tryssogobius is always associated with deep water, and depending on the species, you can find them in small groups in waters between 80 and 360 ft deep, hovering nervously not far above the sand. They were easily frightened, hard to approach, and seemed ready to dart into the gravel voids.
Members of this genus live scattered in the Indo-Western Pacific, and many of these species overlap to a large extent, but as mentioned earlier, their habitats are prosaic and they are shy, so they are rarely seen in documentaries, so we speculate that their true distribution will be wider than known.
Although occasionally seen in the wild, most of these varieties are found in the trade, but most of them are sold under the name "T. colini". The colini seems to have become a trash can, which is why I wasted a lot of effort in writing this article to find a real T. colini 。 Let's get to know these glowing little shrimp tigers.
Tryssogobius colini【Larson & Hoese, 2001 (Colin's fairygoby)】
Photo by Plaza Rakuten.
Etymology: Naming Tribute to Dr. P C, he collected the type specimens.
It is found in Indonesia and Papua New Guinea.
Tryssogobius colini and T. Longipes were the first two species to be named, representing the basic form of the genus. T. colini features the following:
– The first dorsal fin is sickle-shaped, with sky blue and yellow trim at the front and yellow spots arranged in a linear arrangement at the base, accompanied by blue.
– The second dorsal fin also has sky blue and yellow trims.
– The color of the body is pearly milky white. There are a number of blurry yellow transverse bands at the back of the gills.
– There are several yellow lines behind the eyes.
– The caudal fin is long diamond-shaped, and the edges are decorated with yellow threads and sky blue edges. Sometimes a black spot can be seen at the tail stalk, which is evident on specimens preserved in alcohol but not in living organisms.
Tryssogobius flavolineatus【J. E. Randall, 2006 (Yellow-lined fairygoby)】
Image source Trimma.net.
Etymology: Yellow line. It is found in Papua New Guinea.
They are easily distinguished by the yellow line behind their eyes. Other features are as follows:
– The first dorsal fin is sickle-shaped with almost no pale blue trim. There is a horizontal yellow line and a blue line at the base, which are continuous and uninterrupted. There is a slight blue color at the end.
– The base of the second dorsal fin has a yellow line, the edge of which is covered by sky blue. There is a dotted yellow line in the upper part.
– The body is also milky white, and the back will be darker. There is no vertical band.
– The caudal fin is approximately kite-shaped, with pale blue edges on the upper and lower sides, and a yellow line in the middle, which is very light.
Photo by G.R. Allen. Triton Bay
Tryssogobius longipes【Larson & Hoese, 2001 (Longfin fairygoby)】
Photo by Mark Erdmann, fishbase.
Etymology: Albacore. It is found in Indonesia (Flores and West Papua) and Papua New Guinea.
In fact, it is also named in part because of its body length, and it is the larger member of this genus, although it is not much larger.
– The first dorsal fin is tall, sickle-shaped, and has no blue or yellow trim. There is a distinct yellow-blue line at the base, uninterrupted.
– The second dorsal fin has two distinct yellow lines, one at the base, horizontal, and the other on the upper part, which is pale blue.
– The body is milky white, but there is a pronounced yellow-blue longitudinal band from behind the eyes to the tail stalk.
– The caudal fin is diamond-shaped with symmetrical yellow lines on both sides.
Tryssogobius nigrolineatus【J. E. Randall, 2006 (Deepreef fairygoby)】
Etymological black line. It is found in the Ryukyu Islands, Indonesia (Zendrawasi Bay, Raja Ampat and West Papua), Fiji.
Named for the faint black line on the side of the body, this feature is evident on the target itself but not clearly visible on living bodies. Tryssogobius nigrolineatus is the easiest to distinguish and has the following characteristics:
– The first dorsal fin is very tall, sickle-shaped, with a very faint yellow-blue trim and a presentation arrangement of yellow dots at the base.
– The base of the second dorsal fin has a linear arrangement of yellow dots. There is a pronounced yellow line on the upper part with pale blue trims on both sides.
– The caudal fin is long diamond-shaped with a large number of yellow dots on it, with a light blue base, while the middle of the caudal fin has a set of yellow dots that extend linearly and have a milky white base.
Tryssogobius porosus【 Larson & I. S. Chen, 2007】
Taiwan Fish Database.
Micropores in the gill lid before etymology. It is found in the South China Sea and taiwan.
One that few people know about, there are no living photographs, no records of aquarium trade, and only one photograph of the corpse remains.
– The first dorsal fin is blunt, not tall, with black-and-white spots.
– On the side of the body there is a yellow line that extends from behind the eye to the caudal stalk, accompanied by a reticulated yellow vein.
– The caudal fin is rounded and has a randomly distributed yellow dot line.
– Since there aren't more pictures to compare to, it's hard to say exactly what it looks like, perhaps with yellow-blue trim.
Tryssogobius quinquespinus【J. E. Randall, 2006 (Five spine fairygoby)】
Etymology: The first dorsal fin of the five spokes. It is found in Papua New Guinea and southern Philippines. 】。 This is another less informative member, recorded in the Philippines, so we speculate that it will have a wider distribution.
– The first dorsal fin is tall and filamentous and unsiethed, which is reminiscent of the fin pond fish. This is its unique feature in this genus.
Large-mouth line pond snakehead Nemateleotris magnifica
– The base of the second dorsal fin is untreated and has a pronounced yellow line in the middle. fins are similar. – The caudal fin is forked, elongated on both sides and has a pronounced yellow line and pale blue trim.
Tryssogobius sarah【G. R. Allen & Erdmann, 2012 (Sarah's fairygoby)】
Etymology: Named in tribute to Ms. Sarah Crow, an aspiring marine biologist. It is found in the Ryukyu Islands, the Philippines, southern Indonesia, Papua New Guinea and Palau.
Tryssogobius sarah is probably the most common and widely distributed in this genus. It looks similar to T. colini and T. longipes, but can be distinguished from the latter by a white body.
– The first dorsal fin is sickle-shaped with a blue edge. There is a very thin yellow line at the base, uninterrupted.
– The second dorsal fin has two horizontal thin yellow lines, and the fin is similar to the diamond-shaped caudal fin.
Allen and Erdmann
Every member appearing in the trade is unlikely, but like T. Longipes and T. Sarah does appear in fish shops from time to time. These small goamen should be raised in small flocks and provide an environment similar to that in their natural state. Walking gravel, soft sand or muddy substrates are ideally configured. Considering that they come from deep water, soft light should be provided at the beginning of the introduction.
The choice of breeding partner should also be cautious, as noisy fish such as snappers and seabream can scare them and cause them to hide for a long time. Therefore, small fish like Trimma mill pond fish that have similar habitats are good choices. At the same time, small fleshy foods such as brine worms, bran shrimp, etc. should be given.
Finally, maybe these are little fish you've never seen before, but you see, they sparkle in deep water like pearls and sapphires scattered on a gravel-strewn seabed.
In addition, today is Thanksgiving, thanks for the support of the Dragon Peak Sea Fish this year, Xiaobian has prepared some prizes for everyone, want to see today's sub-article.
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