分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Osteoglossiformes (Bony tongues)
骨舌魚目 (Bony tongues) >
Mormyridae (Elephantfishes)
象鼻魚科 (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335); sullivani: This species is dedicated to John P. Sullivan, colleague and friend of the authors, in recognition of his contributions to the systematics of the Mormyridae..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Africa: Widespread in Gabon. It has been collected from the Ogooué basin (excepting its most upper and lower reaches), the Ntem and Ivindo basins, and the Nyanga basin. On numerous occasions, the authors collected this species together with P. simus (Ref. 52344).
Petrocephalus sullivani 在加彭有一個廣泛的分佈。 它有被採集自歐固耶河流域 (除它的最上、下範圍) , Ntem 與伊溫多河流域, 與 Nyanga 流域。 在很多的場合上,收集這種的作家伴隨著 P. simus 。 (參考文獻 52344)
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 9.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 52344)
簡短描述
型態特徵 | 形態測量圖
Petrocephalus sullivani is distinguished from all other Petrocephalus species from Gabon by the following characters: 20 to 25 branched rays in the dorsal fin and 24 to 30 in the anal fin; 14 to 20 scales (average 17.5) between the anterior base of the anal fin and the lateral line; mouth clearly inferior (distance between anterior extremityof th esnout and corner of the mouth between 2.7 and 4.4 times in head length; mouth opens under the posterior half of the eye, whereas in P. simus and P. balayi it opens under the anterior half of the eye); large eye (diameter of the eye between 3.0 and 4.1 times in head length, average 3.6); and no sub-dorsal black spot. The EOD is short (216 ms mean duration) with a peak FFT frequency of 9597 Hz. The EOD presents a prominent third phase (P3) with an amplitude of 12.8% of peak-to-peak height. Eye relatively large. Eye diameter between 3.0 and 4.1 times in head length (average 3.5) (Ref. 52344).
Petrocephalus sullivani 在特徵之後被與來自加彭的全部其他的 Petrocephalus 種區分藉由: 在背鰭中的 20 到 25個分支條與 24 到 30 在臀鰭中; 在臀鰭的前面基底與側線之間的 14個到 20 鱗片 (平均 17.5); 嘴清楚下方 (前面的 extremityof th esnout 與嘴巴的角落之間的距離在 2.7 與 4.4之間倍頭長; 在眼的後半段下面的口裂, 然而在 P. simus 與 P. balayi 中它開放的在那下面前半部的眼); 大的眼;(眼的直徑在 3.0 與 4.1之間倍頭長, 平均 3.6) 而且沒有子背部的黑色斑點。 EOD 是具有一個 9597個赫茲的高峰 FFT 頻率的短 (216 ms 平均的持續時間) 。 EOD 呈現突出的第三個階段 (P3) 有一個 12.8% 高峰的廣闊-到-高峰高度。 眼相當大的。 眼直徑在 3.0 與 4.1之間倍頭長 (平均 3.5).(參考文獻 52344)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Petrocephalus sullivani 在加彭有一個廣泛的分佈。 它有被採集自歐固耶河流域 (除它的最上、下範圍) , Ntem 與伊溫多河流域, 與 Nyanga 流域。 在很多的場合上,收集這種的作家伴隨著 P. simus 。 (參考文獻 52344)
Lavoué, S., C.D. Hopkins and A. Kamdem Toham, 2004. The Petrocephalus (Pisces, Osteoglossomorpha, Mormyridae) of Gabon, Central Africa, with the description of a new species. Zoosystema 26(3):511-535. (Ref. 52344)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 16 February 2009
人類使用
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00697 - 0.03603), b=2.85 (2.67 - 3.03), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).