Evidence for convergent evolution of brooding in a unique gastropod from Lake Tanganyika: anatomy and affinity ofTanganyicia rufofilosa(Caenogastropoda, Cerithioidea, Paludomidae)

2002/04/01 by Ellen E. Strong, Matthias Glaubrecht · 10 citations
Environmental Science · #Aquatic Invertebrate Ecology and Behavior #Freshwater macroinvertebrate diversity and ecology #Aquatic Ecosystems and Phytoplankton Dynamics

paper · pdf · doi:10.1046/j.1463-6409.2002.00072.x

openalex publication_date 2002/04/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/06/24

Abstract

Tanganyicia rufofilosa is an enigmatic gastropod endemic to Lake Tanganyika and unique among lake species in possessing a brood pouch within the head‐foot. However, the only existing anatomic studies of the species are incomplete. Hence, the affinity of this species to other Tanganyikan gastropods and the evolution of viviparity among limnic Cerithioidea are unclear. The anatomic redescription and reinterpretation of reproductive homologies presented here revealed several features from the midgut and kidney that are informative concerning the phylogeny of Lake Tanganyika gastropods. In addition, the complex reproductive anatomy of both sexes is described. A rare accessory gland is present in males that is hypothesized to function in spermatophore formation and to be homologous to the ‘penis’ of some cerithioideans, an otherwise predominantly aphallic group. The structurally unique brood pouch, restricted to the mesopodial portion of the foot, is described and demonstrated to be unknown among viviparous cerithioideans. In contrast to the view that the cerithioideans of Lake Tanganyika represent an endemic radiation of Thiaridae, based on these new data T. rufofilosa appears to be allied to the Paludomidae.

Citations

• ON PALUDOMUS AND CLEOPATRA (THIARIDAE) IN AFRICA AND THE SEYCHELLES ISLANDS

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• Phylogeny of the gastropod superfamily Cerithioidea using morphology and molecules
• MULTIPLE ORIGIN OF VIVIPARITY IN SOUTHEAST ASIAN GASTROPODS (CERITHIOIDEA: PACHYCHILIDAE) AND ITS EVOLUTIONARY IMPLICATIONS
• Anatomy of an adaptive radiation: a unique reproductive strategy in the endemic freshwater gastropod Tylomelania (Cerithioidea: Pachychilidae) on Sulawesi, Indonesia and its biogeographical implications
• Spermatophores of thalassoid gastropods (Paludomidae) in Lake Tanganyika, East Africa, with a survey of their occurrence in Cerithioidea: functional and phylogenetic implications
• Ancient lakes as hotspots of diversity: a morphological review of an endemic species flock of Tylomelania (Gastropoda: Cerithioidea: Pachychilidae) in the Malili lake system on Sulawesi, Indonesia
• Anatomy of the Tiphobiini from Lake Tanganyika (Cerithioidea, Paludomidae)
• Novel reproductive modes in freshwater clams: brooding and larval morphology in Southeast Asian taxa of Corbicula (Mollusca, Bivalvia, Corbiculidae)
• Tanganyicia [wikipedia]
• Tanganyicia rufofilosa [wikipedia]