List of Contributions to
Project Hydrozoa

These ideas are listed in the order that were received.

NOTE: As of August 2004, Allen Collins is in transit and has temporarily suspended new submissions while he settles into a new position at the National Systematics Lab. Please visit again in a few months.

I think that it should be emphasize the studies on population dynamics on hydromedusae. I made my Thesis on Population Dynamics of Olindias sambaquiensis in southern area of Buenos Aires, Argentin (it was under the direction of Dr. Hermes Mianzan) Most of works on population are made on scyphozoa and ctenophore. It seems that hydrozoa medusa are difficult to handle, to measure and to sample. But I think it is important to study of hydromedusae population dynamics since they may be very abundant, may affect fiheries and many of them can painfully sting: Olindias sambaquiensis,Olindias tenuis, Liriope tetraphylla, Gonionemus vertens, etc. These medusa may affect the people's health in touristic areas. I think that the study of species like those may help to understand some importants aspects like growth rates, feeding rates, their impact on mesozooplankton as well as a control of population in case that they be stinging hydromedusae.
Luciano Chiaverano <>
Mar del Plata, Argentina - Thursday, March 07, 2002 at 11:22:23 (PST)
to study the effects of pH on hydra Oligactis
david Maierhofer <>
deakin University
Warrnambool, vic Australia - Wednesday, September 13, 2000 at 23:03:42 (PDT)
A collaborative effort to create an ETI CD (of the sort recently published for the Euphausiids on the Linnaeus software) would be really cool. It would provide interactive keys for ID, images, biological and distributional info, and anything else we wanted it to have. I would be pleased to help organize this if other people are interested.
Lisa-ann Gershwin <>
University of California
Berkeley, CA USA - Wednesday, July 05, 2000 at 11:38:52 (PDT)
I think a database of hydrozoan distribution would be useful. As many species as possible (hydromedusae, hydroids, siphonophores and chondrophorines) should be included. They could be arranged in alphabetical order by generic name. Next to that name could be the known localities that the species occurs. I think many would agree that this would be useful.
Iain Johnston <>

- Sunday, June 25, 2000 at 03:29:34 (PDT)
I am interested to know about distribution of hydrozoa, particulary hydrozoa thecata (polyp) from anywhere. I have little problem to get this information. Please if you know about that, tell me. Oke thank's. Olivia Lolon
olivia <>
Hasaduddin University
Makassar, Indonesia - Sunday, May 07, 2000 at 22:55:26 (PDT)
-working on an hydroidcollection of Colombia -working on growthforms of Milleporidae and their taxonomic value
Dr.Eberhard Wedler <>
Universidad del Magdalena
Santa Marta, Clomia - Tuesday, March 14, 2000 at 19:01:22 (PST)
I am interested to learn how velella and other similar organisms communicate with other parts of the collective organism. I think a mailing list would be a great thing. The mailing list could be archived and thus it could function as a datasource for the database you envision. listserv should be available for free for a project such as this where no money is collected from participants. Let me know. Thanks, Troy
Troy Korjuslommi <>
Tksoft OY, Inc.
Porvoo, Finland - Tuesday, January 04, 2000 at 08:22:09 (PST)
PROPOSED SPECIES LIST FOR PROJECT HYDROZOA from Claudia Mills, March 1999 Following is a list of 76 species of Hydrozoa that might be considered by the Project Hydrozoa as core species. This species list has been arrived at with suggestions from a number of hydrozoan workers, but should not be considered fixed or final. We understand that Antonio Marques is working on filling in a data matrix for all Hydrozoa from which he expects to turn up a smaller species sublist, but such a list may take years to define and may not include common species that deserve our consideration even if little has been done on them in the past. Species included here are deemed to be of fairly wide geographical distribution (most are from the northern hemisphere, but species found in both hemispheres are especially welcome) and are largely easily identified and without difficult, associated taxonomic problems (perhaps with the exception of the species of Obelia). It is hoped that the community of hydrozoan workers will make extra efforts to include members of the core set of species in their work in order to fill in a comparative public database from which anyone might eventually work on phylogenetic and evolutionary questions. Athecatae-Anthomedusae Allopora norvegica (Gunnerus, 1768) Bougainvillia muscus (Allman, 1863) Chlorohydra viridissima (Pallas, 1766) Cladocoryne floccosa Rotch, 1871 Cladonema radiatum Dujardin, 1843 Clava multicornis (Forskål, 1775) Cordylophora caspia (Pallas, 1771) Corymorpha nutans M. Sars, 1835 Coryne muscoides (Linnaeus, 1761) Eleutheria dichotoma Quatrefages, 1842 Eudendrium glomeratum Picard, 1958 Eudendrium racemosum (Gmelin, 1791) Hydra oligactis Pallas, 1766 Hydractinia echinata (Fleming, 1828) Pandea conica (Quoy & Gaimard, 1827) Podocoryne(a) carnea M. Sars, 1846 Polyorchis penicillatus (Eschscholtz, 1829) Proboscidactyla flavicirrata Brandt, 1835 Rathkea octopunctata (M. Sars, 1835) Sarsia japonica (Nagao, 1962) Sarsia tubulosa (M. Sars, 1835) Tubularia crocea (L. Agassiz, 1862) Tubularia indivisa Linnaeus, 1758 Turritopsis nutricula McCrady, 1857 Velella velella (Linnaeus, 1758) Thecatae-Leptomedusae Abietinaria abietina (Linnaeus, 1758) Aequorea aequorea (Forskål, 1775) Aequorea victoria (Murbach & Shearer, 1902) Aglaophenia pluma (Linnaeus, 1758) Campanularia groenlandica Levinsen, 1893 Campanularia volubilis (Linnaeus, 1758) Clytia linearis (Thornely, 1900) Dynamena pumila (Linnaeus, 1758) Eugymnanthea inquilina Palombi, 1935 Garveia franciscana (Torrey, 1902) Gonothyraea loveni (Allman, 1859) Grammaria abietina (M. Sars, 1850) Halicium beanii (Johnston, 1838) Halicium halecinum (Linnaeus, 1758) Hebella parasitica (Ciamician, 1880) Lafoea dumosa (Fleming, 1820) Laomedea flexuosa Alder, 1857 Nemertesia antennina (Linnaeus, 1767) Obelia dichotoma (Linnaeus, 1758) Obelia geniculata (Linnaeus, 1758) Obelia longissima (Pallas, 1766) Plumularia setacea (Linnaeus, 1758) Sertularella gayi (Lamouroux, 1821) Sertularella polyzonias (Linnaeus, 1758) Sertularia argentea Linneaus, 1758 Sertularia cupressina Linnaeus, 1758 Symplectoscyphus tricuspidatus (Alder, 1856) Laingiomedusae Kantiella enigmatica Bouillon, 1978 Limnomedusae Craspedacusta sowerbii Lankester, 1880 Gonionemus vertens A. Agassiz, 1862 Maeotias inexspectata Ostroumoff, 1896 Olindias phosphorica (delle Chiaje, 1841) Narcomedusae Aegina citrea Eschscholtz, 1829 Solmaris flavescens (Kölliker, 1853) Solmissus marshalli A. Agassiz & Mayer, 1902 Solmundella bitentaculata (Quoy & Gaimard, 1833) Trachymedusae Aglantha digitale (O. F. Müller, 1776) Aglaura hemistoma Péron & Lesueur, 1809 Colobonema sericeum Vanhöffen, 1902 Halicreas minimum Fewkes, 1882 Liriope tetraphylla (Chamisso & Eysenhardt, 1821) Rhopalonema velatum Gegenbaur, 1856 Siphonophora (which are increasingly looking like they belong with the Anthomedusae) Abylopsis tetragona (Otto, 1823) Dimophyes arctica (Chun, 1897) Chelophyes appendiculata (Eschscholtz, 1829) Muggiaea atlantica Cunningham, 1892 Nanomia bijuga (delle Chiaje, 1841) Nanomia cara A. Agassiz, 1865 Physalia physalis (Linnaeus, 1758) Physophora hydrostatica Forskål, 1775 Praya dubia (Quoy & Gaimard, 1833)
Claudia Mills <>
Friday Harbor Labs, University of Washington
Friday Harbor, WA USA - Sunday, March 07, 1999 at 17:48:12 (PST)
Hydrozoa have a medusa and polyp stage that is preety neat THe KLICA wuz here
joe mama <123@abc>
slugsign Inc.
KLica, - Sunday, March 07, 1999 at 14:18:44 (PST)
To render the data more accessible, would it be possible to propose a list of key words for the subjects which would be easier to enter and easier to read and classify, as proposed in BBay ? Thanks to Allen for the HS page, it was a true pleasure to open and discover it this morning. On the web page HS logo ressembles after me more and more to "polmones", "poumons", I did not remember the english term... I like the reallistic logo of Project Hydrozoa.
Nicole Gravier-Bonnet <>
Universite de La Reunion
SAINT DENIS (LA REUNION), FRANCE - Thursday, October 22, 1998 at 00:22:39 (PDT)
I have the complete 18S gene sequence for the following hydrozoan species: Aequorea_aequorea, Aequorea_victoria, Aegina_citrea, Liriope_tetraphylla, Crossota_undescribed_sp., Crossota_rufobrunnea, Haliscera_conica, Praya_dubia, Physophora_hydrostatica, Polyorchis_haplus, Moerisia_sp., Cladonema_californicum, Bougainvillia_sp., and Maeotias_inexspectata.

In addition, GenBank has the following sequences: Selaginopsis_cornigera, Gymnangium_hians, Hydra_littoralis, and Coryne_pusilla. In the future, I plan on generating additional sequences of the 18S gene and would be willing to determine the molecular sequence of other genes that show promise for resolving deeper evolutionary relationships. Such genes are RNA Polymerase II, Elongation Factor-1alpha, Heat Shock Protein 70, and others.

I always welcome tissues, so contact me if you have something you think would be interesting. Thanks.

Allen Collins <>
Section of Ecology, Behavior & Evolution
San Diego, CA USA - Wednesday, October 14, 1998 at 08:27:16 (PDT)