Skip to main content
SpringerLink
Log in

Crasiella fonseci, a new species of Gastrotricha (Macrodasyida, Planodasyidae) from São Paulo, Brazil

  • Diversity of marine meiofauna on the coast of Brazil
  • Published:
Marine Biodiversity Aims and scope Submit manuscript

Abstract

A new gastrotrich species of the genus Crasiella (Macrodasyida: Planodasyidae) is described from sublittoral sands of Ilha do Tamanduá (Caraguatatuba, São Paulo), Brazil. Crasiella fonseci n. sp. is up to 560 μm long and differs from its congeners in its unique trilobed head shape, distinct indentation at the pharyngeal pores, and the presence of reinforcing rods in the caudal pedicles. Adhesive tubes are only present in ventrolateral and posterior series. The ventrolateral adhesive tubes are of multiple sizes and form two slightly-staggered columns down the length of the body. Tubes of the pharyngeal region are short, stout, and protrude laterally, while most tubes of the trunk region are distinctly thinner, more flaccid, and project posteriorly. Caudally, the tubes are again stouter and project laterally. Seven posterior adhesive tubes are borne on a pair of small caudal pedicles that are reinforced internally with rods. Animals are simultaneous hermaphrodites with a small frontal organ and large, apparently non-muscular caudal organ. This is the first report of the genus from South American waters.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2

Similar content being viewed by others

References

  • Balsillie JH, Donoghue JF, Butler KM, Koch JL (2002) Plotting equation for Gaussian percentiles and a spreadsheet program for generating probability plots. J Sed Res 72:929–933

    Article  Google Scholar 

  • Clausen C (1968) Crasiella diplura gen. et sp. n. (Gastrotricha, Macrodasyoidea). Sarsia 33:59–64

    Article  Google Scholar 

  • Couta ECG, Da Silveira FL, Rocha GRA (2003) Marine biodiversity in Brazil: the current status. Gayana 67(2):327–340

    Google Scholar 

  • da Fonsêca-Genevois V, Smol N, Decraemer W, Veneky V (2009) Bernardius lineatus gen. n., sp. n. (Enoplida: Echelidiidae), a remarkable nematode with ornamented cuticle from a Brazilian tropical sandy beach. Nematology 11:275–287

    Article  Google Scholar 

  • d’Hondt JL (1974) Note sur Psammodasys cambriensis (Boaden, 1963) et Crasiella oceanica n. sp. (Gastrotriches Macrodasyoides). Bull Soc Zool Fr 99:675–680

    Google Scholar 

  • Di Domenico M, Da Cunha Lana P, Garraffoni ARS (2008) Distribution patterns of interstitial polychaetes in sandy beach of southern Brazil. Mar Ecol 30:47–62

    Article  Google Scholar 

  • Dioni W (1960) Notas hydrobiologicas II. Turbanella corderoi nov. sp. (Gastrotricha Macrodasyoidea) gastrotrico aberrante de aguas salobras. Anais Ist Congr Latin-Am Zool 1:121–125

    Google Scholar 

  • du Bois-Raymond Marcus E (1952) On South American Malacopoda. Boletins da Faculdade de Filosofia, Ciências e Letras, Universidade de São Paulo. Sér Zool 17:189–209

    Google Scholar 

  • Forneris L (1985) Manual de técnicas para a preparação de coleções zoológicas. Soc Brasil Zool 11:1–14

  • Forneris L (1989) Filo Gastrotricha. In: Migotto AE, Tiago CG (eds) Biodiversidade do Estado de São Paulo, Brasil: Síntese do Conhecimento ao Final do Século XX 3: Invertebrados Marinhos. FAPESP, Sao Paulo, pp 73–76

    Google Scholar 

  • Giere O (2009) Meiobenthology. The microscopic fauna of aquatic sediments, 2nd edn. Springer, Berlin

    Google Scholar 

  • Grohmann PA (2013) First record of Protohydra cf. leuckarti (Cnidaria, Hydrozoa) from South America, in the Campos Basin, Rio de Janeiro, Brazil, with comments on its taxonomy and a brief review of its bio-ecology and distribution. Meiofauna Mar 20:63–69

    Google Scholar 

  • Guidi L, Todaro MA, Ferraguti M, Balsamo M (2011) Reproductive system of the genus Crasiella (Gastrotricha, Macrodasyida). Helgol Mar Res 65:175–185

    Article  Google Scholar 

  • Hochberg R (1999) Spatiotemporal size-class distribution of Turbanella mustela (Gastrotricha: Macrodasyida) on a northern California beach and its effect on tidal suspension. Pac Sci 216:50–60

    Google Scholar 

  • Hochberg R (2008) Gastrotricha of Bocas del Toro, Panama: a preliminary report. Meiofauna Mar 16:101–107

    Google Scholar 

  • Hochberg R (2010) New species of Oregodasys (Gastrotricha: Macrodasyida) from Carrie Bow Cay, Belize with an ultrastructural description of the epidermal glandular system. Zootaxa 2660:1–17

    Google Scholar 

  • Hochberg R, Atherton S (2010) Acanthodasys caribbbeanensis sp. nov., a new species of Thaumastodermatidae (Gastrotricha, Macrodasyida) from Belize and Panama. Zookeys 61:1–10

    Article  PubMed  Google Scholar 

  • Hochberg R, Atherton S (2011) A new species of Lepidodasys (Gastrotricha, Macrodasyida) from Panama with a description of its peptidergic nervous system using CLSM, anti-FMRFamide and anti-SCPb. Zool Anz 250:111–122

    Article  Google Scholar 

  • Hummon WD (1974) Intertidal marine Gastrotricha from Colombia. Bull Mar Sci 24:396–408

    Google Scholar 

  • Hummon WD (2007) Gastrotricha. In: Carlton JT (ed) The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon. 4th edn. University of California Press, Berkeley, CA, pp 267–268

  • Hummon WD (2008) Gastrotricha of the North Atlantic Ocean: I. Twenty four new and two redescribed species of Macrodasyida. Meiofauna Mar 16:117–174

    Google Scholar 

  • Hummon WD (2009) (revision of 2001, 2004, 2007). Global database for marine Gastrotricha (Taxonomic, Geographic Bibliographic and Video). Available from: http://132.235.243.28 or http://hummon-nas.biosci.ohiou.edu.

  • Hummon WD (2010) Marine Gastrotricha of the Caribbean sea: a review and new descriptions. Bull Mar Sci 86:661–708

    Google Scholar 

  • Kieneke A, Ahlrichs WH, Arbizu PM (2012) Morphology and function of reproductive organs in Neodasys chaetonotoideus (Gastrotricha: Neodasyidae) with a phylogenetic assessment of the reproductive system in Gastrotricha. Zool Scr 38:289–311

    Article  Google Scholar 

  • Lee J, Chang CY (2012) Crasiella clauseni, a new gastrotrich species (Macrodasyida, Planodasyidae) from Jeju Island, South Korea. Anim Syst Evol Diversif 28:42–47

    Article  Google Scholar 

  • Maria TF, Paiva P, Vanreusel A, Esteves AM (2013) The relationship between sandy beach nematodes and environmental characteristics in two Brazilian sandy beaches (Guanabara Bay, Rio de Janiero). Anais Acad Bras Ciênecias 85(1):257–270

    Google Scholar 

  • Rao GC (1981) Crasiella indica n. sp. (Gastrotricha, Macrodasyida) from Orissa coast, India. Bull Zool Surv India 4:3–6

    CAS  Google Scholar 

  • Remane A (1953) Ein neues Gastrotrich aus dem Pazifik, Turbanella palaciosi nov. spec. Zool Anz 151:272–276

    Google Scholar 

  • Ruppert EE (1991) Gastrotricha. In: Harrison FW, Ruppert EE (eds) Microscopic anatomy of invertebrates, 4, Aschelminthes. Wiley, New York, pp 41–109

    Google Scholar 

  • Schmidt P (1974) Interstitielle Fauna von Galapagos. IV. Gastrotricha. Mikro Meeresbod 26:1–76

    Google Scholar 

  • Souza-Santos LP, Ribeiro VSS, da Fonsêca-Genevois V (2003) Seasonality of intertidal meiofauna on a tropical sand beach in Tamandare Bay (Northeast Brazil). J Coast Res 35:369–377

    Google Scholar 

  • Todaro MA (2012) A new marine gastrotrich from the State of São Paulo (Brazil), with a key to species of Pseudostomella (Gastrotricha, Thaumastodermatidae). ZooKeys 223:39–51

    Article  PubMed  Google Scholar 

  • Todaro MA (2013) A new non-naked species of Ptychostomella (Gastrotricha) from Brazil. ZooKeys 289:13–24

    Article  PubMed  Google Scholar 

  • Todaro MA, Hummon WD (2008) An overview and a dichotomous key to genera of the phylum Gastrotricha. Meiofauna Mar 16:3–20

    Google Scholar 

  • Todaro MA, Rocha CEF (2004) Diversity and distribution of marine Gastrotricha along the northern beaches of the State of São Paulo (Brazil), with description of a new species of Macrodasys (Macrodasyida, Macrodasyidae). J Nat Hist 38:1605–1634

    Article  Google Scholar 

  • Todaro MA, Rocha CEF (2005) Further data on marine gastrotrichs from the State of São Paulo and the first records from the State of Rio de Janeiro (Brazil). Meiofauna Mar 14:27–31

    Google Scholar 

  • Tyler S, Rieger GE (1980) Adhesive organs of the Gastrotricha. I. Duo-gland organs. Zoomorphologie 95:1–15

    Article  Google Scholar 

Download references

Acknowledgments

The author thanks Dr. Gustavo Fonseca for the invitation to visit Brazil and for organizing the meiofauna workshop at the Centro de Biologia Marinha da USP. The author also thanks Dr. Maikon D. Domenico and the workshop graduate students for their help with collections, and Dr. Fabianne Gallucci for her assistance with granulometric analyses. Funding for this research came from grants from the São Paulo Research Foundation (FAPESP 2011/21289-3) and the National Science Foundation (DEB 0918499).

Author information

Authors and Affiliations

  1. University of Massachusetts Lowell, Lowell, MA, 01854, USA

    Rick Hochberg

Authors
  1. Rick Hochberg
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Rick Hochberg.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hochberg, R. Crasiella fonseci, a new species of Gastrotricha (Macrodasyida, Planodasyidae) from São Paulo, Brazil. Mar Biodiv 44, 237–242 (2014). https://doi.org/10.1007/s12526-013-0165-4

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12526-013-0165-4

Keywords

Search

Navigation