Tangaroan Shrimp Goby

Characterized by having semi-translucent whitish body; orange spots interspersed with small white or bluish spots on body; dorsal fin brownish "pennant"; basal part of pectoral fin with white marking forming long, diffuse narrow white streak; greatly prolonged first and second dorsal spines; longitudinal scale series 47-51; opening of gill extending forward to vertical at posterior edge of eye; greatest depth of body 4.3-5.2 in SL; rounded caudal fin, except straight in central part, about equal to head length (Ref. 90102).

Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Analspines: 1; Analsoft rays: 10 - 11

Inhabits patches of fine sand on seaward reefs.

Occurs in patches of fine sand on seaward reefs and uses alpheid shrimp burrows for refuge. Found in clear coastal and inner reefs on rubble flats and slopes in 6-20 meters depth range (Ref. 48637).

aquarium: commercial

分布於太平洋區海域，包括臺灣、日本、關島及薩摩亞等島嶼。臺灣南部可發現。

小型魚類，不具漁業價值。

第一背鰭：Ⅵ；第二背鰭：Ⅰ, 10~11 (通常11)。臀鰭：Ⅰ, 10~11 (通常11)。胸鰭：18~20。縱列鱗 47~51。體延長，前呈圓筒型，後側扁。標準體長為魚體高的4.3~5.2倍；為頭長的2.95~3.15倍。第一背鰭較第二背鰭高，第一、二鰭棘非常延長，長度長於頭長，標準體長為棘長的2倍。尾鰭圓形，與頭長約等長。兩腹鰭癒合成一碟狀，末端只延長至肛門位置。頭、體呈淺棕色，背部色較深，體側散具若干個不規則小橘斑，頭部亦具一些橘色小斑點，頰部下方有2個較大斑塊。(林上智、林沛立編寫 2012/10)

暖水性沿海底層小型魚類，生活於熱帶珊瑚礁海域的砂底，與槍蝦營共生生活。

Ctenogobiops tangaroai, the Tangaroan shrimp-goby, is a species of goby of the family Gobiidae, native to the reefs of the Pacific Ocean where it can be found in fine-grained sand patches at depths of from 4 to 40 metres (13 to 131 ft). This species is commensal with alpheid shrimps, with a fish and shrimp sharing a burrow. This species can reach a length of 6 centimetres (2.4 in) TL. It can also be found in the aquarium trade.