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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Phalloceros: Greek, phallos = penis + Greek, keras = horn (Ref. 45335); alessandrae: Named for Alessandra M.V. Lucinda.
Environment: milieu / climate zone / depth range / distribution range
বাস্তুসংস্থান
; স্বাদু পানি সমুদতলে ভাসমান বেনথোপেলাজিক. Tropical
South America: Brazil in flooded areas on margins nearby Antonina and rio Dois de Fevereiro, flowing into the Baía de Paranaguá.
আকৃতি / ওজন / Age
Maturity: Lm ? range ? - ? cm
Max length : 1.8 cm SL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (Ref. 76852); 2.5 cm SL (female)
Short description
সনাক্তকারী নির্দেশক | বহিঃ অঙ্গ সংস্থান | মরফোমেট্রিক্স
পৃষ্ঠীয় নরম পাখনা দন্ড (মোট ) : 8; পায়ূর নরম পাখনা্তুন্ড: 9 - 11; কশেরুকা : 32. Diagnosed from other species of the genus Phalloceros except Phalloceros megapolos, Phalloceros spiloura, Phalloceros malabarbai, Phalloceros anisophallos, Phalloceros buckupi, Phalloceros uai, Phalloceros lucenorum, Phalloceros pellos, and Phalloceros reisi by the female urogenital
papilla curved to the right, located laterally (vs. slightly left turned and with a lateral ramus or straight located along midventral line; and border of the anal aperture in contact with the first anal-fin ray or very close to it (vs. separated from first anal-fin ray by the female urogenital papilla). Differs from Phalloceros megapolos by the gonopodial appendix normally developed (vs. greatly expanded in wing like expansions); and from Phalloceros spiloura, Phalloceros anisophallos, Phalloceros buckupi, Phalloceros uai, Phalloceros lucenorum, Phalloceros pellos, and Phalloceros reisi by the halves of gonopodial paired appendix slender, not sickle like, and similar to each other (vs. sickle like and different from each other), bearing a medial corner (vs. medial corner absent); and hooks on both halves of gonopodial paired appendix (vs. right half hook absent).
Distinguished from Phalloceros malabarbai by gonopodial appendix straight at the distal tip (vs. strongly arched at the distal tip); distal portion straight and oblique forming a 45º angle with the vertical axis (vs. distal portion bent upward); and left and right halves
coalescent at the base (vs. halves free not coalescent at the base) (Ref. 76852).
Life cycle and mating behavior
পরিপক্কতা | প্রজনন | ডিম ছাড়া | ডিমসমূহ | ডিম্বধারন ক্ষমতা | শুককীট
Lucinda, P.H.F., 2008. Systematics and biogeography of the genus Phalloceros Eigenmann, 1907 (Cyprinodontiformes: Poeciliidae: Poeciliinae), with the description of twenty-one new species. Neotrop. Ichthyol. 6(2):113-158. (Ref. 76852)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
হাতিয়ার
Special reports
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ইন্টারনেট সুত্র
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=0.00851 (0.00374 - 0.01935), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ট্রফিক পর্যায়ে (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
স্থিতিস্থাপক (Ref.
120179): উচ্চ, সর্বনিম্ন প্রজন দ্বিগুনের সময় ১৫ মাস (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Phalloceros alessandrae (Alessandra\](/images/thumbnails/jpg/tn_Phale_m0.jpg "Image of Phalloceros alessandrae (Alessandra\")
